Finding the Fourth Proportional to 2,893.78, 4,339.59 and 945.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,893.78 : 4,339.59 = 945.46 : x
2. Step 2: Convert to fraction form
   2,893.78/4,339.59 = 945.46/x
3. Step 3: Cross multiply
   2,893.78x = 4,339.59 × 945.46
4. Step 4: Simplify right side
   2,893.78x = 4,102,908.76
5. Step 5: Solve for x
   x = 4,102,908.76/2,893.78
6. Step 6: Final answer
   x = 1,417.84