Finding the Fourth Proportional to 4,145.72, 5,720.43 and 2,377.00

Step by Step Solution

1. Step 1: Write the proportion equation
   4,145.72 : 5,720.43 = 2,377.00 : x
2. Step 2: Convert to fraction form
   4,145.72/5,720.43 = 2,377.00/x
3. Step 3: Cross multiply
   4,145.72x = 5,720.43 × 2,377.00
4. Step 4: Simplify right side
   4,145.72x = 13,597,456.72
5. Step 5: Solve for x
   x = 13,597,456.72/4,145.72
6. Step 6: Final answer
   x = 3,279.88