Finding the Fourth Proportional to 1,870.28, 2,581.90 and 1,124.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.28 : 2,581.90 = 1,124.81 : x
2. Step 2: Convert to fraction form
   1,870.28/2,581.90 = 1,124.81/x
3. Step 3: Cross multiply
   1,870.28x = 2,581.90 × 1,124.81
4. Step 4: Simplify right side
   1,870.28x = 2,904,131.22
5. Step 5: Solve for x
   x = 2,904,131.22/1,870.28
6. Step 6: Final answer
   x = 1,552.78