Finding the Fourth Proportional to 1,517.91, 2,277.96 and 1,128.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,517.91 : 2,277.96 = 1,128.81 : x
2. Step 2: Convert to fraction form
   1,517.91/2,277.96 = 1,128.81/x
3. Step 3: Cross multiply
   1,517.91x = 2,277.96 × 1,128.81
4. Step 4: Simplify right side
   1,517.91x = 2,571,384.03
5. Step 5: Solve for x
   x = 2,571,384.03/1,517.91
6. Step 6: Final answer
   x = 1,694.03