Finding the Fourth Proportional to 3,708.88, 5,561.52 and 1,111.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,708.88 : 5,561.52 = 1,111.12 : x
2. Step 2: Convert to fraction form
   3,708.88/5,561.52 = 1,111.12/x
3. Step 3: Cross multiply
   3,708.88x = 5,561.52 × 1,111.12
4. Step 4: Simplify right side
   3,708.88x = 6,179,516.10
5. Step 5: Solve for x
   x = 6,179,516.10/3,708.88
6. Step 6: Final answer
   x = 1,666.14