Finding the Fourth Proportional to 3,443.43, 5,165.51 and 1,102.87

Step by Step Solution

1. Step 1: Write the proportion equation
   3,443.43 : 5,165.51 = 1,102.87 : x
2. Step 2: Convert to fraction form
   3,443.43/5,165.51 = 1,102.87/x
3. Step 3: Cross multiply
   3,443.43x = 5,165.51 × 1,102.87
4. Step 4: Simplify right side
   3,443.43x = 5,696,886.01
5. Step 5: Solve for x
   x = 5,696,886.01/3,443.43
6. Step 6: Final answer
   x = 1,654.42