Finding the Fourth Proportional to 2,585.70, 3,870.45 and 2,034.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,585.70 : 3,870.45 = 2,034.90 : x
2. Step 2: Convert to fraction form
   2,585.70/3,870.45 = 2,034.90/x
3. Step 3: Cross multiply
   2,585.70x = 3,870.45 × 2,034.90
4. Step 4: Simplify right side
   2,585.70x = 7,875,978.71
5. Step 5: Solve for x
   x = 7,875,978.71/2,585.70
6. Step 6: Final answer
   x = 3,045.98