Finding the Fourth Proportional to 2,301.90, 3,176.34 and 1,557.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,301.90 : 3,176.34 = 1,557.48 : x
2. Step 2: Convert to fraction form
   2,301.90/3,176.34 = 1,557.48/x
3. Step 3: Cross multiply
   2,301.90x = 3,176.34 × 1,557.48
4. Step 4: Simplify right side
   2,301.90x = 4,947,086.02
5. Step 5: Solve for x
   x = 4,947,086.02/2,301.90
6. Step 6: Final answer
   x = 2,149.13