Finding the Fourth Proportional to 1,038,613.25, 1,433,290.61 and 561,685.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,038,613.25 : 1,433,290.61 = 561,685.25 : x
2. Step 2: Convert to fraction form
   1,038,613.25/1,433,290.61 = 561,685.25/x
3. Step 3: Cross multiply
   1,038,613.25x = 1,433,290.61 × 561,685.25
4. Step 4: Simplify right side
   1,038,613.25x = 805,058,194,600.50
5. Step 5: Solve for x
   x = 805,058,194,600.50/1,038,613.25
6. Step 6: Final answer
   x = 775,127.98