Finding the Fourth Proportional to 1,942.50, 2,679.30 and 1,156.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,942.50 : 2,679.30 = 1,156.80 : x
2. Step 2: Convert to fraction form
   1,942.50/2,679.30 = 1,156.80/x
3. Step 3: Cross multiply
   1,942.50x = 2,679.30 × 1,156.80
4. Step 4: Simplify right side
   1,942.50x = 3,099,414.24
5. Step 5: Solve for x
   x = 3,099,414.24/1,942.50
6. Step 6: Final answer
   x = 1,595.58