Finding the Fourth Proportional to 652,801.28, 978,611.42 and 231,978.74

Step by Step Solution

1. Step 1: Write the proportion equation
   652,801.28 : 978,611.42 = 231,978.74 : x
2. Step 2: Convert to fraction form
   652,801.28/978,611.42 = 231,978.74/x
3. Step 3: Cross multiply
   652,801.28x = 978,611.42 × 231,978.74
4. Step 4: Simplify right side
   652,801.28x = 227,017,039,848.10
5. Step 5: Solve for x
   x = 227,017,039,848.10/652,801.28
6. Step 6: Final answer
   x = 347,758.27