Finding the Fourth Proportional to 2,599.16, 3,901.80 and 2,051.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,599.16 : 3,901.80 = 2,051.72 : x
2. Step 2: Convert to fraction form
   2,599.16/3,901.80 = 2,051.72/x
3. Step 3: Cross multiply
   2,599.16x = 3,901.80 × 2,051.72
4. Step 4: Simplify right side
   2,599.16x = 8,005,401.10
5. Step 5: Solve for x
   x = 8,005,401.10/2,599.16
6. Step 6: Final answer
   x = 3,080.00