Finding the Fourth Proportional to 1,552.78, 2,142.78 and 854.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,552.78 : 2,142.78 = 854.14 : x
2. Step 2: Convert to fraction form
   1,552.78/2,142.78 = 854.14/x
3. Step 3: Cross multiply
   1,552.78x = 2,142.78 × 854.14
4. Step 4: Simplify right side
   1,552.78x = 1,830,234.11
5. Step 5: Solve for x
   x = 1,830,234.11/1,552.78
6. Step 6: Final answer
   x = 1,178.68