Finding the Fourth Proportional to 2,601.78, 3,904.17 and 1,303.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,601.78 : 3,904.17 = 1,303.26 : x
2. Step 2: Convert to fraction form
   2,601.78/3,904.17 = 1,303.26/x
3. Step 3: Cross multiply
   2,601.78x = 3,904.17 × 1,303.26
4. Step 4: Simplify right side
   2,601.78x = 5,088,148.59
5. Step 5: Solve for x
   x = 5,088,148.59/2,601.78
6. Step 6: Final answer
   x = 1,955.64