Finding the Fourth Proportional to 2,339.78, 3,510.81 and 954.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,339.78 : 3,510.81 = 954.07 : x
2. Step 2: Convert to fraction form
   2,339.78/3,510.81 = 954.07/x
3. Step 3: Cross multiply
   2,339.78x = 3,510.81 × 954.07
4. Step 4: Simplify right side
   2,339.78x = 3,349,549.72
5. Step 5: Solve for x
   x = 3,349,549.72/2,339.78
6. Step 6: Final answer
   x = 1,431.57