Finding the Fourth Proportional to 1,552.17, 2,142.03 and 853.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,552.17 : 2,142.03 = 853.54 : x
2. Step 2: Convert to fraction form
   1,552.17/2,142.03 = 853.54/x
3. Step 3: Cross multiply
   1,552.17x = 2,142.03 × 853.54
4. Step 4: Simplify right side
   1,552.17x = 1,828,308.29
5. Step 5: Solve for x
   x = 1,828,308.29/1,552.17
6. Step 6: Final answer
   x = 1,177.90