Finding the Fourth Proportional to 3,810.76, 5,716.17 and 1,345.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,810.76 : 5,716.17 = 1,345.61 : x
2. Step 2: Convert to fraction form
   3,810.76/5,716.17 = 1,345.61/x
3. Step 3: Cross multiply
   3,810.76x = 5,716.17 × 1,345.61
4. Step 4: Simplify right side
   3,810.76x = 7,691,749.80
5. Step 5: Solve for x
   x = 7,691,749.80/3,810.76
6. Step 6: Final answer
   x = 2,018.43