Finding the Fourth Proportional to 868,061.56, 1,197,911.94 and 480,875.75

Step by Step Solution

1. Step 1: Write the proportion equation
   868,061.56 : 1,197,911.94 = 480,875.75 : x
2. Step 2: Convert to fraction form
   868,061.56/1,197,911.94 = 480,875.75/x
3. Step 3: Cross multiply
   868,061.56x = 1,197,911.94 × 480,875.75
4. Step 4: Simplify right side
   868,061.56x = 576,046,806,019.04
5. Step 5: Solve for x
   x = 576,046,806,019.04/868,061.56
6. Step 6: Final answer
   x = 663,601.33