Finding the Fourth Proportional to 2,477.09, 3,715.23 and 745.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,477.09 : 3,715.23 = 745.31 : x
2. Step 2: Convert to fraction form
   2,477.09/3,715.23 = 745.31/x
3. Step 3: Cross multiply
   2,477.09x = 3,715.23 × 745.31
4. Step 4: Simplify right side
   2,477.09x = 2,769,010.15
5. Step 5: Solve for x
   x = 2,769,010.15/2,477.09
6. Step 6: Final answer
   x = 1,117.85