Finding the Fourth Proportional to 740,826.18, 1,022,340.15 and 401,294.43

Step by Step Solution

1. Step 1: Write the proportion equation
   740,826.18 : 1,022,340.15 = 401,294.43 : x
2. Step 2: Convert to fraction form
   740,826.18/1,022,340.15 = 401,294.43/x
3. Step 3: Cross multiply
   740,826.18x = 1,022,340.15 × 401,294.43
4. Step 4: Simplify right side
   740,826.18x = 410,259,407,760.37
5. Step 5: Solve for x
   x = 410,259,407,760.37/740,826.18
6. Step 6: Final answer
   x = 553,786.33