Finding the Fourth Proportional to 2,728,809.56, 4,092,328.63 and 906,685.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,728,809.56 : 4,092,328.63 = 906,685.15 : x
2. Step 2: Convert to fraction form
   2,728,809.56/4,092,328.63 = 906,685.15/x
3. Step 3: Cross multiply
   2,728,809.56x = 4,092,328.63 × 906,685.15
4. Step 4: Simplify right side
   2,728,809.56x = 3,710,453,597,740.85
5. Step 5: Solve for x
   x = 3,710,453,597,740.85/2,728,809.56
6. Step 6: Final answer
   x = 1,359,733.44