Finding the Fourth Proportional to 740,978.88, 1,022,551.83 and 401,447.13

Step by Step Solution

1. Step 1: Write the proportion equation
   740,978.88 : 1,022,551.83 = 401,447.13 : x
2. Step 2: Convert to fraction form
   740,978.88/1,022,551.83 = 401,447.13/x
3. Step 3: Cross multiply
   740,978.88x = 1,022,551.83 × 401,447.13
4. Step 4: Simplify right side
   740,978.88x = 410,500,497,429.75
5. Step 5: Solve for x
   x = 410,500,497,429.75/740,978.88
6. Step 6: Final answer
   x = 553,997.57