Finding the Fourth Proportional to 2,785.47, 3,843.95 and 1,543.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,785.47 : 3,843.95 = 1,543.47 : x
2. Step 2: Convert to fraction form
   2,785.47/3,843.95 = 1,543.47/x
3. Step 3: Cross multiply
   2,785.47x = 3,843.95 × 1,543.47
4. Step 4: Simplify right side
   2,785.47x = 5,933,021.51
5. Step 5: Solve for x
   x = 5,933,021.51/2,785.47
6. Step 6: Final answer
   x = 2,129.99