Finding the Fourth Proportional to 2,071.42, 3,107.10 and 1,382.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.42 : 3,107.10 = 1,382.50 : x
2. Step 2: Convert to fraction form
   2,071.42/3,107.10 = 1,382.50/x
3. Step 3: Cross multiply
   2,071.42x = 3,107.10 × 1,382.50
4. Step 4: Simplify right side
   2,071.42x = 4,295,565.75
5. Step 5: Solve for x
   x = 4,295,565.75/2,071.42
6. Step 6: Final answer
   x = 2,073.73