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Finding the Fourth Proportional to 2,174.85, 3,264.71 and 1,078.92

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Solution

The fourth proportional to 2,174.85, 3,264.71 and 1,078.92 is: 1,619.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.85 : 3,264.71 = 1,078.92 : x
  2. Step 2: Convert to fraction form
    2,174.85/3,264.71 = 1,078.92/x
  3. Step 3: Cross multiply
    2,174.85x = 3,264.71 × 1,078.92
  4. Step 4: Simplify right side
    2,174.85x = 3,522,355.52
  5. Step 5: Solve for x
    x = 3,522,355.52/2,174.85
  6. Step 6: Final answer
    x = 1,619.59

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