Finding the Fourth Proportional to 1,058,685.24, 1,587,134.72 and 459,194.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,058,685.24 : 1,587,134.72 = 459,194.78 : x
2. Step 2: Convert to fraction form
   1,058,685.24/1,587,134.72 = 459,194.78/x
3. Step 3: Cross multiply
   1,058,685.24x = 1,587,134.72 × 459,194.78
4. Step 4: Simplify right side
   1,058,685.24x = 728,803,978,580.76
5. Step 5: Solve for x
   x = 728,803,978,580.76/1,058,685.24
6. Step 6: Final answer
   x = 688,404.78