Finding the Fourth Proportional to 2,933.76, 4,396.56 and 1,287.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,933.76 : 4,396.56 = 1,287.84 : x
2. Step 2: Convert to fraction form
   2,933.76/4,396.56 = 1,287.84/x
3. Step 3: Cross multiply
   2,933.76x = 4,396.56 × 1,287.84
4. Step 4: Simplify right side
   2,933.76x = 5,662,065.83
5. Step 5: Solve for x
   x = 5,662,065.83/2,933.76
6. Step 6: Final answer
   x = 1,929.97