Finding the Fourth Proportional to 2,210.49, 3,315.06 and 749.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,210.49 : 3,315.06 = 749.31 : x
2. Step 2: Convert to fraction form
   2,210.49/3,315.06 = 749.31/x
3. Step 3: Cross multiply
   2,210.49x = 3,315.06 × 749.31
4. Step 4: Simplify right side
   2,210.49x = 2,484,007.61
5. Step 5: Solve for x
   x = 2,484,007.61/2,210.49
6. Step 6: Final answer
   x = 1,123.74