Finding the Fourth Proportional to 1,552.71, 2,142.70 and 844.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,552.71 : 2,142.70 = 844.55 : x
2. Step 2: Convert to fraction form
   1,552.71/2,142.70 = 844.55/x
3. Step 3: Cross multiply
   1,552.71x = 2,142.70 × 844.55
4. Step 4: Simplify right side
   1,552.71x = 1,809,612.50
5. Step 5: Solve for x
   x = 1,809,612.50/1,552.71
6. Step 6: Final answer
   x = 1,165.45