Finding the Fourth Proportional to 3,392.02, 5,087.86 and 926.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,392.02 : 5,087.86 = 926.79 : x
2. Step 2: Convert to fraction form
   3,392.02/5,087.86 = 926.79/x
3. Step 3: Cross multiply
   3,392.02x = 5,087.86 × 926.79
4. Step 4: Simplify right side
   3,392.02x = 4,715,377.77
5. Step 5: Solve for x
   x = 4,715,377.77/3,392.02
6. Step 6: Final answer
   x = 1,390.14