Finding the Fourth Proportional to 1,013,131.31, 1,519,698.74 and 414,091.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,013,131.31 : 1,519,698.74 = 414,091.94 : x
2. Step 2: Convert to fraction form
   1,013,131.31/1,519,698.74 = 414,091.94/x
3. Step 3: Cross multiply
   1,013,131.31x = 1,519,698.74 × 414,091.94
4. Step 4: Simplify right side
   1,013,131.31x = 629,294,989,793.20
5. Step 5: Solve for x
   x = 629,294,989,793.20/1,013,131.31
6. Step 6: Final answer
   x = 621,138.63