Finding the Fourth Proportional to 2,139.54, 2,948.71 and 1,549.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139.54 : 2,948.71 = 1,549.05 : x
2. Step 2: Convert to fraction form
   2,139.54/2,948.71 = 1,549.05/x
3. Step 3: Cross multiply
   2,139.54x = 2,948.71 × 1,549.05
4. Step 4: Simplify right side
   2,139.54x = 4,567,699.23
5. Step 5: Solve for x
   x = 4,567,699.23/2,139.54
6. Step 6: Final answer
   x = 2,134.90