Finding the Fourth Proportional to 1,425,401.69, 1,965,478.08 and 908,336.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,425,401.69 : 1,965,478.08 = 908,336.50 : x
2. Step 2: Convert to fraction form
   1,425,401.69/1,965,478.08 = 908,336.50/x
3. Step 3: Cross multiply
   1,425,401.69x = 1,965,478.08 × 908,336.50
4. Step 4: Simplify right side
   1,425,401.69x = 1,785,315,480,013.92
5. Step 5: Solve for x
   x = 1,785,315,480,013.92/1,425,401.69
6. Step 6: Final answer
   x = 1,252,499.90