Finding the Fourth Proportional to 2,820.97, 3,892.81 and 1,562.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,820.97 : 3,892.81 = 1,562.07 : x
2. Step 2: Convert to fraction form
   2,820.97/3,892.81 = 1,562.07/x
3. Step 3: Cross multiply
   2,820.97x = 3,892.81 × 1,562.07
4. Step 4: Simplify right side
   2,820.97x = 6,080,841.72
5. Step 5: Solve for x
   x = 6,080,841.72/2,820.97
6. Step 6: Final answer
   x = 2,155.59