Finding the Fourth Proportional to 1,548.01, 2,138.16 and 1,156.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,548.01 : 2,138.16 = 1,156.78 : x
2. Step 2: Convert to fraction form
   1,548.01/2,138.16 = 1,156.78/x
3. Step 3: Cross multiply
   1,548.01x = 2,138.16 × 1,156.78
4. Step 4: Simplify right side
   1,548.01x = 2,473,380.72
5. Step 5: Solve for x
   x = 2,473,380.72/1,548.01
6. Step 6: Final answer
   x = 1,597.78