Finding the Fourth Proportional to 1,144,757.72, 1,579,686.63 and 635,420

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144,757.72 : 1,579,686.63 = 635,420 : x
2. Step 2: Convert to fraction form
   1,144,757.72/1,579,686.63 = 635,420/x
3. Step 3: Cross multiply
   1,144,757.72x = 1,579,686.63 × 635,420
4. Step 4: Simplify right side
   1,144,757.72x = 1,003,764,478,434.60
5. Step 5: Solve for x
   x = 1,003,764,478,434.60/1,144,757.72
6. Step 6: Final answer
   x = 876,835.74