Finding the Fourth Proportional to 1,915,912.52, 2,643,902.72 and 1,056,472.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,915,912.52 : 2,643,902.72 = 1,056,472.56 : x
2. Step 2: Convert to fraction form
   1,915,912.52/2,643,902.72 = 1,056,472.56/x
3. Step 3: Cross multiply
   1,915,912.52x = 2,643,902.72 × 1,056,472.56
4. Step 4: Simplify right side
   1,915,912.52x = 2,793,210,674,989.36
5. Step 5: Solve for x
   x = 2,793,210,674,989.36/1,915,912.52
6. Step 6: Final answer
   x = 1,457,900.95