Finding the Fourth Proportional to 1,128.50, 1,557.36 and 736.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,128.50 : 1,557.36 = 736.22 : x
2. Step 2: Convert to fraction form
   1,128.50/1,557.36 = 736.22/x
3. Step 3: Cross multiply
   1,128.50x = 1,557.36 × 736.22
4. Step 4: Simplify right side
   1,128.50x = 1,146,559.58
5. Step 5: Solve for x
   x = 1,146,559.58/1,128.50
6. Step 6: Final answer
   x = 1,016.00