Finding the Fourth Proportional to 2,991.39, 4,487.49 and 1,043.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,991.39 : 4,487.49 = 1,043.34 : x
2. Step 2: Convert to fraction form
   2,991.39/4,487.49 = 1,043.34/x
3. Step 3: Cross multiply
   2,991.39x = 4,487.49 × 1,043.34
4. Step 4: Simplify right side
   2,991.39x = 4,681,977.82
5. Step 5: Solve for x
   x = 4,681,977.82/2,991.39
6. Step 6: Final answer
   x = 1,565.15