Finding the Fourth Proportional to 1,111.35, 1,666.71 and 746.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.35 : 1,666.71 = 746.31 : x
2. Step 2: Convert to fraction form
   1,111.35/1,666.71 = 746.31/x
3. Step 3: Cross multiply
   1,111.35x = 1,666.71 × 746.31
4. Step 4: Simplify right side
   1,111.35x = 1,243,882.34
5. Step 5: Solve for x
   x = 1,243,882.34/1,111.35
6. Step 6: Final answer
   x = 1,119.25