Finding the Fourth Proportional to 2,221,109.48, 3,331,867.52 and 623,661.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,221,109.48 : 3,331,867.52 = 623,661.78 : x
2. Step 2: Convert to fraction form
   2,221,109.48/3,331,867.52 = 623,661.78/x
3. Step 3: Cross multiply
   2,221,109.48x = 3,331,867.52 × 623,661.78
4. Step 4: Simplify right side
   2,221,109.48x = 2,077,958,428,247.39
5. Step 5: Solve for x
   x = 2,077,958,428,247.39/2,221,109.48
6. Step 6: Final answer
   x = 935,549.75