Finding the Fourth Proportional to 1,105.02, 1,655.42 and 556.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.02 : 1,655.42 = 556.56 : x
2. Step 2: Convert to fraction form
   1,105.02/1,655.42 = 556.56/x
3. Step 3: Cross multiply
   1,105.02x = 1,655.42 × 556.56
4. Step 4: Simplify right side
   1,105.02x = 921,340.56
5. Step 5: Solve for x
   x = 921,340.56/1,105.02
6. Step 6: Final answer
   x = 833.78