Finding the Fourth Proportional to 2,103.30, 3,145.68 and 1,549.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.30 : 3,145.68 = 1,549.80 : x
2. Step 2: Convert to fraction form
   2,103.30/3,145.68 = 1,549.80/x
3. Step 3: Cross multiply
   2,103.30x = 3,145.68 × 1,549.80
4. Step 4: Simplify right side
   2,103.30x = 4,875,174.86
5. Step 5: Solve for x
   x = 4,875,174.86/2,103.30
6. Step 6: Final answer
   x = 2,317.87