Finding the Fourth Proportional to 1,144,990.88, 1,580,014.32 and 635,693.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144,990.88 : 1,580,014.32 = 635,693.12 : x
2. Step 2: Convert to fraction form
   1,144,990.88/1,580,014.32 = 635,693.12/x
3. Step 3: Cross multiply
   1,144,990.88x = 1,580,014.32 × 635,693.12
4. Step 4: Simplify right side
   1,144,990.88x = 1,004,404,232,725.48
5. Step 5: Solve for x
   x = 1,004,404,232,725.48/1,144,990.88
6. Step 6: Final answer
   x = 877,215.92