Finding the Fourth Proportional to 3,810.69, 5,718.57 and 1,345.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,810.69 : 5,718.57 = 1,345.50 : x
2. Step 2: Convert to fraction form
   3,810.69/5,718.57 = 1,345.50/x
3. Step 3: Cross multiply
   3,810.69x = 5,718.57 × 1,345.50
4. Step 4: Simplify right side
   3,810.69x = 7,694,335.94
5. Step 5: Solve for x
   x = 7,694,335.94/3,810.69
6. Step 6: Final answer
   x = 2,019.15