Finding the Fourth Proportional to 1,109,308.24, 1,530,758.28 and 625,990.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109,308.24 : 1,530,758.28 = 625,990.96 : x
2. Step 2: Convert to fraction form
   1,109,308.24/1,530,758.28 = 625,990.96/x
3. Step 3: Cross multiply
   1,109,308.24x = 1,530,758.28 × 625,990.96
4. Step 4: Simplify right side
   1,109,308.24x = 958,240,845,225.15
5. Step 5: Solve for x
   x = 958,240,845,225.15/1,109,308.24
6. Step 6: Final answer
   x = 863,818.38