Finding the Fourth Proportional to 2,140.32, 2,947.50 and 1,839.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140.32 : 2,947.50 = 1,839.16 : x
2. Step 2: Convert to fraction form
   2,140.32/2,947.50 = 1,839.16/x
3. Step 3: Cross multiply
   2,140.32x = 2,947.50 × 1,839.16
4. Step 4: Simplify right side
   2,140.32x = 5,420,924.10
5. Step 5: Solve for x
   x = 5,420,924.10/2,140.32
6. Step 6: Final answer
   x = 2,532.76