Finding the Fourth Proportional to 2,291.15, 3,438.35 and 2,070.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,291.15 : 3,438.35 = 2,070.83 : x
2. Step 2: Convert to fraction form
   2,291.15/3,438.35 = 2,070.83/x
3. Step 3: Cross multiply
   2,291.15x = 3,438.35 × 2,070.83
4. Step 4: Simplify right side
   2,291.15x = 7,120,238.33
5. Step 5: Solve for x
   x = 7,120,238.33/2,291.15
6. Step 6: Final answer
   x = 3,107.71