Finding the Fourth Proportional to 2,301.86, 3,176.55 and 1,253.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,301.86 : 3,176.55 = 1,253.90 : x
2. Step 2: Convert to fraction form
   2,301.86/3,176.55 = 1,253.90/x
3. Step 3: Cross multiply
   2,301.86x = 3,176.55 × 1,253.90
4. Step 4: Simplify right side
   2,301.86x = 3,983,060.16
5. Step 5: Solve for x
   x = 3,983,060.16/2,301.86
6. Step 6: Final answer
   x = 1,730.37