Finding the Fourth Proportional to 1,490.07, 2,233.89 and 749.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,490.07 : 2,233.89 = 749.19 : x
2. Step 2: Convert to fraction form
   1,490.07/2,233.89 = 749.19/x
3. Step 3: Cross multiply
   1,490.07x = 2,233.89 × 749.19
4. Step 4: Simplify right side
   1,490.07x = 1,673,608.05
5. Step 5: Solve for x
   x = 1,673,608.05/1,490.07
6. Step 6: Final answer
   x = 1,123.17