Finding the Fourth Proportional to 2,257,427.48, 3,386,251.98 and 909,407.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,257,427.48 : 3,386,251.98 = 909,407.25 : x
2. Step 2: Convert to fraction form
   2,257,427.48/3,386,251.98 = 909,407.25/x
3. Step 3: Cross multiply
   2,257,427.48x = 3,386,251.98 × 909,407.25
4. Step 4: Simplify right side
   2,257,427.48x = 3,079,482,100,938.86
5. Step 5: Solve for x
   x = 3,079,482,100,938.86/2,257,427.48
6. Step 6: Final answer
   x = 1,364,155.50