Finding the Fourth Proportional to 784,971.98, 1,083,430.17 and 478,982.81

Step by Step Solution

1. Step 1: Write the proportion equation
   784,971.98 : 1,083,430.17 = 478,982.81 : x
2. Step 2: Convert to fraction form
   784,971.98/1,083,430.17 = 478,982.81/x
3. Step 3: Cross multiply
   784,971.98x = 1,083,430.17 × 478,982.81
4. Step 4: Simplify right side
   784,971.98x = 518,944,424,870.46
5. Step 5: Solve for x
   x = 518,944,424,870.46/784,971.98
6. Step 6: Final answer
   x = 661,099.30