Finding the Fourth Proportional to 2,920.96, 4,026.12 and 2,070.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,920.96 : 4,026.12 = 2,070.50 : x
2. Step 2: Convert to fraction form
   2,920.96/4,026.12 = 2,070.50/x
3. Step 3: Cross multiply
   2,920.96x = 4,026.12 × 2,070.50
4. Step 4: Simplify right side
   2,920.96x = 8,336,061.33
5. Step 5: Solve for x
   x = 8,336,061.33/2,920.96
6. Step 6: Final answer
   x = 2,853.88