Finding the Fourth Proportional to 2,590.50, 3,886.40 and 741.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,590.50 : 3,886.40 = 741.76 : x
2. Step 2: Convert to fraction form
   2,590.50/3,886.40 = 741.76/x
3. Step 3: Cross multiply
   2,590.50x = 3,886.40 × 741.76
4. Step 4: Simplify right side
   2,590.50x = 2,882,764.03
5. Step 5: Solve for x
   x = 2,882,764.03/2,590.50
6. Step 6: Final answer
   x = 1,112.82