Finding the Fourth Proportional to 1,494.38, 2,237.46 and 1,128.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,494.38 : 2,237.46 = 1,128.06 : x
2. Step 2: Convert to fraction form
   1,494.38/2,237.46 = 1,128.06/x
3. Step 3: Cross multiply
   1,494.38x = 2,237.46 × 1,128.06
4. Step 4: Simplify right side
   1,494.38x = 2,523,989.13
5. Step 5: Solve for x
   x = 2,523,989.13/1,494.38
6. Step 6: Final answer
   x = 1,688.99