Finding the Fourth Proportional to 2,251.30, 3,106.20 and 1,367.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,251.30 : 3,106.20 = 1,367.50 : x
2. Step 2: Convert to fraction form
   2,251.30/3,106.20 = 1,367.50/x
3. Step 3: Cross multiply
   2,251.30x = 3,106.20 × 1,367.50
4. Step 4: Simplify right side
   2,251.30x = 4,247,728.50
5. Step 5: Solve for x
   x = 4,247,728.50/2,251.30
6. Step 6: Final answer
   x = 1,886.79