Finding the Fourth Proportional to 2,406.76, 3,321.15 and 1,569.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,406.76 : 3,321.15 = 1,569.07 : x
2. Step 2: Convert to fraction form
   2,406.76/3,321.15 = 1,569.07/x
3. Step 3: Cross multiply
   2,406.76x = 3,321.15 × 1,569.07
4. Step 4: Simplify right side
   2,406.76x = 5,211,116.83
5. Step 5: Solve for x
   x = 5,211,116.83/2,406.76
6. Step 6: Final answer
   x = 2,165.20