Finding the Fourth Proportional to 1,836.59, 2,534.53 and 1,128.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,836.59 : 2,534.53 = 1,128.81 : x
2. Step 2: Convert to fraction form
   1,836.59/2,534.53 = 1,128.81/x
3. Step 3: Cross multiply
   1,836.59x = 2,534.53 × 1,128.81
4. Step 4: Simplify right side
   1,836.59x = 2,861,002.89
5. Step 5: Solve for x
   x = 2,861,002.89/1,836.59
6. Step 6: Final answer
   x = 1,557.78