Finding the Fourth Proportional to 710,456.18, 1,066,104.58 and 261,492.38

Step by Step Solution

1. Step 1: Write the proportion equation
   710,456.18 : 1,066,104.58 = 261,492.38 : x
2. Step 2: Convert to fraction form
   710,456.18/1,066,104.58 = 261,492.38/x
3. Step 3: Cross multiply
   710,456.18x = 1,066,104.58 × 261,492.38
4. Step 4: Simplify right side
   710,456.18x = 278,778,223,953.10
5. Step 5: Solve for x
   x = 278,778,223,953.10/710,456.18
6. Step 6: Final answer
   x = 392,393.27