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Finding the Fourth Proportional to 1,978.15, 2,729.88 and 1,093.94

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Solution

The fourth proportional to 1,978.15, 2,729.88 and 1,093.94 is: 1,509.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978.15 : 2,729.88 = 1,093.94 : x
  2. Step 2: Convert to fraction form
    1,978.15/2,729.88 = 1,093.94/x
  3. Step 3: Cross multiply
    1,978.15x = 2,729.88 × 1,093.94
  4. Step 4: Simplify right side
    1,978.15x = 2,986,311.28
  5. Step 5: Solve for x
    x = 2,986,311.28/1,978.15
  6. Step 6: Final answer
    x = 1,509.65

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