Finding the Fourth Proportional to 2,820.39, 3,892.15 and 1,544.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,820.39 : 3,892.15 = 1,544.29 : x
2. Step 2: Convert to fraction form
   2,820.39/3,892.15 = 1,544.29/x
3. Step 3: Cross multiply
   2,820.39x = 3,892.15 × 1,544.29
4. Step 4: Simplify right side
   2,820.39x = 6,010,611.47
5. Step 5: Solve for x
   x = 6,010,611.47/2,820.39
6. Step 6: Final answer
   x = 2,131.12