Finding the Fourth Proportional to 1,105.49, 1,656.17 and 556.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.49 : 1,656.17 = 556.34 : x
2. Step 2: Convert to fraction form
   1,105.49/1,656.17 = 556.34/x
3. Step 3: Cross multiply
   1,105.49x = 1,656.17 × 556.34
4. Step 4: Simplify right side
   1,105.49x = 921,382.56
5. Step 5: Solve for x
   x = 921,382.56/1,105.49
6. Step 6: Final answer
   x = 833.46