Finding the Fourth Proportional to 1,780.43, 2,456.50 and 1,150.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,780.43 : 2,456.50 = 1,150.98 : x
2. Step 2: Convert to fraction form
   1,780.43/2,456.50 = 1,150.98/x
3. Step 3: Cross multiply
   1,780.43x = 2,456.50 × 1,150.98
4. Step 4: Simplify right side
   1,780.43x = 2,827,396.40
5. Step 5: Solve for x
   x = 2,827,396.40/1,780.43
6. Step 6: Final answer
   x = 1,588.04