Finding the Fourth Proportional to 2,082.12, 2,870.52 and 1,726.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,082.12 : 2,870.52 = 1,726.74 : x
2. Step 2: Convert to fraction form
   2,082.12/2,870.52 = 1,726.74/x
3. Step 3: Cross multiply
   2,082.12x = 2,870.52 × 1,726.74
4. Step 4: Simplify right side
   2,082.12x = 4,956,641.70
5. Step 5: Solve for x
   x = 4,956,641.70/2,082.12
6. Step 6: Final answer
   x = 2,380.57