Finding the Fourth Proportional to 1,655.56, 2,479.69 and 1,105.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,655.56 : 2,479.69 = 1,105.17 : x
2. Step 2: Convert to fraction form
   1,655.56/2,479.69 = 1,105.17/x
3. Step 3: Cross multiply
   1,655.56x = 2,479.69 × 1,105.17
4. Step 4: Simplify right side
   1,655.56x = 2,740,479.00
5. Step 5: Solve for x
   x = 2,740,479.00/1,655.56
6. Step 6: Final answer
   x = 1,655.32