Finding the Fourth Proportional to 1,123,043.20, 1,549,796.16 and 613,745.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,043.20 : 1,549,796.16 = 613,745.57 : x
2. Step 2: Convert to fraction form
   1,123,043.20/1,549,796.16 = 613,745.57/x
3. Step 3: Cross multiply
   1,123,043.20x = 1,549,796.16 × 613,745.57
4. Step 4: Simplify right side
   1,123,043.20x = 951,180,527,603.01
5. Step 5: Solve for x
   x = 951,180,527,603.01/1,123,043.20
6. Step 6: Final answer
   x = 846,967.00