Finding the Fourth Proportional to 653,111.48, 979,153.88 and 412,719.77

Step by Step Solution

1. Step 1: Write the proportion equation
   653,111.48 : 979,153.88 = 412,719.77 : x
2. Step 2: Convert to fraction form
   653,111.48/979,153.88 = 412,719.77/x
3. Step 3: Cross multiply
   653,111.48x = 979,153.88 × 412,719.77
4. Step 4: Simplify right side
   653,111.48x = 404,116,164,532.49
5. Step 5: Solve for x
   x = 404,116,164,532.49/653,111.48
6. Step 6: Final answer
   x = 618,755.26