Finding the Fourth Proportional to 1,398,271.52, 2,096,078.52 and 891,409.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,398,271.52 : 2,096,078.52 = 891,409.88 : x
2. Step 2: Convert to fraction form
   1,398,271.52/2,096,078.52 = 891,409.88/x
3. Step 3: Cross multiply
   1,398,271.52x = 2,096,078.52 × 891,409.88
4. Step 4: Simplify right side
   1,398,271.52x = 1,868,465,101,983.78
5. Step 5: Solve for x
   x = 1,868,465,101,983.78/1,398,271.52
6. Step 6: Final answer
   x = 1,336,267.72