Finding the Fourth Proportional to 3,900.54, 5,852.42 and 2,051.20

Step by Step Solution

1. Step 1: Write the proportion equation
   3,900.54 : 5,852.42 = 2,051.20 : x
2. Step 2: Convert to fraction form
   3,900.54/5,852.42 = 2,051.20/x
3. Step 3: Cross multiply
   3,900.54x = 5,852.42 × 2,051.20
4. Step 4: Simplify right side
   3,900.54x = 12,004,483.90
5. Step 5: Solve for x
   x = 12,004,483.90/3,900.54
6. Step 6: Final answer
   x = 3,077.65