Finding the Fourth Proportional to 1,022,856.27, 1,412,146.43 and 909,364.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,022,856.27 : 1,412,146.43 = 909,364.88 : x
2. Step 2: Convert to fraction form
   1,022,856.27/1,412,146.43 = 909,364.88/x
3. Step 3: Cross multiply
   1,022,856.27x = 1,412,146.43 × 909,364.88
4. Step 4: Simplify right side
   1,022,856.27x = 1,284,156,357,251.82
5. Step 5: Solve for x
   x = 1,284,156,357,251.82/1,022,856.27
6. Step 6: Final answer
   x = 1,255,461.20