Finding the Fourth Proportional to 2,231.00, 3,345.37 and 749.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,231.00 : 3,345.37 = 749.72 : x
2. Step 2: Convert to fraction form
   2,231.00/3,345.37 = 749.72/x
3. Step 3: Cross multiply
   2,231.00x = 3,345.37 × 749.72
4. Step 4: Simplify right side
   2,231.00x = 2,508,072.20
5. Step 5: Solve for x
   x = 2,508,072.20/2,231.00
6. Step 6: Final answer
   x = 1,124.19