Finding the Fourth Proportional to 3,810.72, 5,715.72 and 1,345.41

Step by Step Solution

1. Step 1: Write the proportion equation
   3,810.72 : 5,715.72 = 1,345.41 : x
2. Step 2: Convert to fraction form
   3,810.72/5,715.72 = 1,345.41/x
3. Step 3: Cross multiply
   3,810.72x = 5,715.72 × 1,345.41
4. Step 4: Simplify right side
   3,810.72x = 7,689,986.85
5. Step 5: Solve for x
   x = 7,689,986.85/3,810.72
6. Step 6: Final answer
   x = 2,017.99