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Finding the Fourth Proportional to 841,978.20, 1,266,077.70 and 705,120.60

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Solution

The fourth proportional to 841,978.20, 1,266,077.70 and 705,120.60 is: 1,060,285.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,978.20 : 1,266,077.70 = 705,120.60 : x
  2. Step 2: Convert to fraction form
    841,978.20/1,266,077.70 = 705,120.60/x
  3. Step 3: Cross multiply
    841,978.20x = 1,266,077.70 × 705,120.60
  4. Step 4: Simplify right side
    841,978.20x = 892,737,467,470.62
  5. Step 5: Solve for x
    x = 892,737,467,470.62/841,978.20
  6. Step 6: Final answer
    x = 1,060,285.73

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