Finding the Fourth Proportional to 1,580.85, 2,366.42 and 849.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,580.85 : 2,366.42 = 849.42 : x
2. Step 2: Convert to fraction form
   1,580.85/2,366.42 = 849.42/x
3. Step 3: Cross multiply
   1,580.85x = 2,366.42 × 849.42
4. Step 4: Simplify right side
   1,580.85x = 2,010,080.23
5. Step 5: Solve for x
   x = 2,010,080.23/1,580.85
6. Step 6: Final answer
   x = 1,271.52