Finding the Fourth Proportional to 1,053,410.31, 1,580,128.89 and 370,269.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053,410.31 : 1,580,128.89 = 370,269.60 : x
2. Step 2: Convert to fraction form
   1,053,410.31/1,580,128.89 = 370,269.60/x
3. Step 3: Cross multiply
   1,053,410.31x = 1,580,128.89 × 370,269.60
4. Step 4: Simplify right side
   1,053,410.31x = 585,073,692,048.74
5. Step 5: Solve for x
   x = 585,073,692,048.74/1,053,410.31
6. Step 6: Final answer
   x = 555,409.12