Finding the Fourth Proportional to 2,891.86, 4,338.18 and 943.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,891.86 : 4,338.18 = 943.42 : x
2. Step 2: Convert to fraction form
   2,891.86/4,338.18 = 943.42/x
3. Step 3: Cross multiply
   2,891.86x = 4,338.18 × 943.42
4. Step 4: Simplify right side
   2,891.86x = 4,092,725.78
5. Step 5: Solve for x
   x = 4,092,725.78/2,891.86
6. Step 6: Final answer
   x = 1,415.26