Finding the Fourth Proportional to 1,931,311.36, 2,665,085.52 and 1,071,872.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931,311.36 : 2,665,085.52 = 1,071,872.20 : x
2. Step 2: Convert to fraction form
   1,931,311.36/2,665,085.52 = 1,071,872.20/x
3. Step 3: Cross multiply
   1,931,311.36x = 2,665,085.52 × 1,071,872.20
4. Step 4: Simplify right side
   1,931,311.36x = 2,856,631,079,510.54
5. Step 5: Solve for x
   x = 2,856,631,079,510.54/1,931,311.36
6. Step 6: Final answer
   x = 1,479,114.73