Finding the Fourth Proportional to 1,124.83, 1,552.16 and 646.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,124.83 : 1,552.16 = 646.29 : x
2. Step 2: Convert to fraction form
   1,124.83/1,552.16 = 646.29/x
3. Step 3: Cross multiply
   1,124.83x = 1,552.16 × 646.29
4. Step 4: Simplify right side
   1,124.83x = 1,003,147.10
5. Step 5: Solve for x
   x = 1,003,147.10/1,124.83
6. Step 6: Final answer
   x = 891.82