Finding the Fourth Proportional to 2,599.29, 3,900.45 and 1,612.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,599.29 : 3,900.45 = 1,612.71 : x
2. Step 2: Convert to fraction form
   2,599.29/3,900.45 = 1,612.71/x
3. Step 3: Cross multiply
   2,599.29x = 3,900.45 × 1,612.71
4. Step 4: Simplify right side
   2,599.29x = 6,290,300.77
5. Step 5: Solve for x
   x = 6,290,300.77/2,599.29
6. Step 6: Final answer
   x = 2,420.01