Finding the Fourth Proportional to 2,071.94, 3,108.98 and 1,379.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.94 : 3,108.98 = 1,379.10 : x
2. Step 2: Convert to fraction form
   2,071.94/3,108.98 = 1,379.10/x
3. Step 3: Cross multiply
   2,071.94x = 3,108.98 × 1,379.10
4. Step 4: Simplify right side
   2,071.94x = 4,287,594.32
5. Step 5: Solve for x
   x = 4,287,594.32/2,071.94
6. Step 6: Final answer
   x = 2,069.36