Finding the Fourth Proportional to 2,802.81, 3,867.93 and 1,543.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,802.81 : 3,867.93 = 1,543.89 : x
2. Step 2: Convert to fraction form
   2,802.81/3,867.93 = 1,543.89/x
3. Step 3: Cross multiply
   2,802.81x = 3,867.93 × 1,543.89
4. Step 4: Simplify right side
   2,802.81x = 5,971,658.45
5. Step 5: Solve for x
   x = 5,971,658.45/2,802.81
6. Step 6: Final answer
   x = 2,130.60