Finding the Fourth Proportional to 2,566.85, 3,541.30 and 1,620.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,566.85 : 3,541.30 = 1,620.99 : x
2. Step 2: Convert to fraction form
   2,566.85/3,541.30 = 1,620.99/x
3. Step 3: Cross multiply
   2,566.85x = 3,541.30 × 1,620.99
4. Step 4: Simplify right side
   2,566.85x = 5,740,407.83
5. Step 5: Solve for x
   x = 5,740,407.83/2,566.85
6. Step 6: Final answer
   x = 2,236.37