Finding the Fourth Proportional to 2,606.59, 3,911.76 and 1,025.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606.59 : 3,911.76 = 1,025.54 : x
2. Step 2: Convert to fraction form
   2,606.59/3,911.76 = 1,025.54/x
3. Step 3: Cross multiply
   2,606.59x = 3,911.76 × 1,025.54
4. Step 4: Simplify right side
   2,606.59x = 4,011,666.35
5. Step 5: Solve for x
   x = 4,011,666.35/2,606.59
6. Step 6: Final answer
   x = 1,539.05