Finding the Fourth Proportional to 706,061.48, 1,058,835.92 and 386,449.52

Step by Step Solution

1. Step 1: Write the proportion equation
   706,061.48 : 1,058,835.92 = 386,449.52 : x
2. Step 2: Convert to fraction form
   706,061.48/1,058,835.92 = 386,449.52/x
3. Step 3: Cross multiply
   706,061.48x = 1,058,835.92 × 386,449.52
4. Step 4: Simplify right side
   706,061.48x = 409,186,625,816.33
5. Step 5: Solve for x
   x = 409,186,625,816.33/706,061.48
6. Step 6: Final answer
   x = 579,533.99