Finding the Fourth Proportional to 1,808.59, 2,496.12 and 1,145.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,808.59 : 2,496.12 = 1,145.50 : x
2. Step 2: Convert to fraction form
   1,808.59/2,496.12 = 1,145.50/x
3. Step 3: Cross multiply
   1,808.59x = 2,496.12 × 1,145.50
4. Step 4: Simplify right side
   1,808.59x = 2,859,315.41
5. Step 5: Solve for x
   x = 2,859,315.41/1,808.59
6. Step 6: Final answer
   x = 1,580.96