Finding the Fourth Proportional to 748,584.24, 1,123,198.04 and 243,300.05

Step by Step Solution

1. Step 1: Write the proportion equation
   748,584.24 : 1,123,198.04 = 243,300.05 : x
2. Step 2: Convert to fraction form
   748,584.24/1,123,198.04 = 243,300.05/x
3. Step 3: Cross multiply
   748,584.24x = 1,123,198.04 × 243,300.05
4. Step 4: Simplify right side
   748,584.24x = 273,274,139,291.90
5. Step 5: Solve for x
   x = 273,274,139,291.90/748,584.24
6. Step 6: Final answer
   x = 365,054.63