Finding the Fourth Proportional to 2,477.56, 3,715.82 and 745.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,477.56 : 3,715.82 = 745.80 : x
2. Step 2: Convert to fraction form
   2,477.56/3,715.82 = 745.80/x
3. Step 3: Cross multiply
   2,477.56x = 3,715.82 × 745.80
4. Step 4: Simplify right side
   2,477.56x = 2,771,258.56
5. Step 5: Solve for x
   x = 2,771,258.56/2,477.56
6. Step 6: Final answer
   x = 1,118.54