Finding the Fourth Proportional to 2,920.72, 4,026.41 and 1,800.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,920.72 : 4,026.41 = 1,800.91 : x
2. Step 2: Convert to fraction form
   2,920.72/4,026.41 = 1,800.91/x
3. Step 3: Cross multiply
   2,920.72x = 4,026.41 × 1,800.91
4. Step 4: Simplify right side
   2,920.72x = 7,251,196.47
5. Step 5: Solve for x
   x = 7,251,196.47/2,920.72
6. Step 6: Final answer
   x = 2,482.68