Finding the Fourth Proportional to 2,342.47, 3,513.69 and 955.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,342.47 : 3,513.69 = 955.78 : x
2. Step 2: Convert to fraction form
   2,342.47/3,513.69 = 955.78/x
3. Step 3: Cross multiply
   2,342.47x = 3,513.69 × 955.78
4. Step 4: Simplify right side
   2,342.47x = 3,358,314.63
5. Step 5: Solve for x
   x = 3,358,314.63/2,342.47
6. Step 6: Final answer
   x = 1,433.66