Finding the Fourth Proportional to 1,548.79, 2,138.31 and 1,076.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,548.79 : 2,138.31 = 1,076.54 : x
2. Step 2: Convert to fraction form
   1,548.79/2,138.31 = 1,076.54/x
3. Step 3: Cross multiply
   1,548.79x = 2,138.31 × 1,076.54
4. Step 4: Simplify right side
   1,548.79x = 2,301,976.25
5. Step 5: Solve for x
   x = 2,301,976.25/1,548.79
6. Step 6: Final answer
   x = 1,486.31