Finding the Fourth Proportional to 2,385.82, 3,292.50 and 1,391.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,385.82 : 3,292.50 = 1,391.14 : x
2. Step 2: Convert to fraction form
   2,385.82/3,292.50 = 1,391.14/x
3. Step 3: Cross multiply
   2,385.82x = 3,292.50 × 1,391.14
4. Step 4: Simplify right side
   2,385.82x = 4,580,328.45
5. Step 5: Solve for x
   x = 4,580,328.45/2,385.82
6. Step 6: Final answer
   x = 1,919.81