Finding the Fourth Proportional to 1,552.31, 2,141.37 and 1,178.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,552.31 : 2,141.37 = 1,178.67 : x
2. Step 2: Convert to fraction form
   1,552.31/2,141.37 = 1,178.67/x
3. Step 3: Cross multiply
   1,552.31x = 2,141.37 × 1,178.67
4. Step 4: Simplify right side
   1,552.31x = 2,523,968.58
5. Step 5: Solve for x
   x = 2,523,968.58/1,552.31
6. Step 6: Final answer
   x = 1,625.94