Finding the Fourth Proportional to 1,010,426.28, 1,392,019.67 and 703,948.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,010,426.28 : 1,392,019.67 = 703,948.31 : x
2. Step 2: Convert to fraction form
   1,010,426.28/1,392,019.67 = 703,948.31/x
3. Step 3: Cross multiply
   1,010,426.28x = 1,392,019.67 × 703,948.31
4. Step 4: Simplify right side
   1,010,426.28x = 979,909,888,983.03
5. Step 5: Solve for x
   x = 979,909,888,983.03/1,010,426.28
6. Step 6: Final answer
   x = 969,798.50