Finding the Fourth Proportional to 3,708.76, 5,561.52 and 1,111.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,708.76 : 5,561.52 = 1,111.10 : x
2. Step 2: Convert to fraction form
   3,708.76/5,561.52 = 1,111.10/x
3. Step 3: Cross multiply
   3,708.76x = 5,561.52 × 1,111.10
4. Step 4: Simplify right side
   3,708.76x = 6,179,404.87
5. Step 5: Solve for x
   x = 6,179,404.87/3,708.76
6. Step 6: Final answer
   x = 1,666.16