Finding the Fourth Proportional to 1,525,548.52, 2,287,436.68 and 578,402.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,525,548.52 : 2,287,436.68 = 578,402.56 : x
2. Step 2: Convert to fraction form
   1,525,548.52/2,287,436.68 = 578,402.56/x
3. Step 3: Cross multiply
   1,525,548.52x = 2,287,436.68 × 578,402.56
4. Step 4: Simplify right side
   1,525,548.52x = 1,323,059,231,549.90
5. Step 5: Solve for x
   x = 1,323,059,231,549.90/1,525,548.52
6. Step 6: Final answer
   x = 867,267.88