Finding the Fourth Proportional to 1,111.50, 1,666.17 and 746.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.50 : 1,666.17 = 746.38 : x
2. Step 2: Convert to fraction form
   1,111.50/1,666.17 = 746.38/x
3. Step 3: Cross multiply
   1,111.50x = 1,666.17 × 746.38
4. Step 4: Simplify right side
   1,111.50x = 1,243,595.96
5. Step 5: Solve for x
   x = 1,243,595.96/1,111.50
6. Step 6: Final answer
   x = 1,118.84