Finding the Fourth Proportional to 1,113.30, 1,667.50 and 746.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,113.30 : 1,667.50 = 746.36 : x
2. Step 2: Convert to fraction form
   1,113.30/1,667.50 = 746.36/x
3. Step 3: Cross multiply
   1,113.30x = 1,667.50 × 746.36
4. Step 4: Simplify right side
   1,113.30x = 1,244,555.30
5. Step 5: Solve for x
   x = 1,244,555.30/1,113.30
6. Step 6: Final answer
   x = 1,117.90