Finding the Fourth Proportional to 2,777.69, 4,166.59 and 928.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,777.69 : 4,166.59 = 928.82 : x
2. Step 2: Convert to fraction form
   2,777.69/4,166.59 = 928.82/x
3. Step 3: Cross multiply
   2,777.69x = 4,166.59 × 928.82
4. Step 4: Simplify right side
   2,777.69x = 3,869,998.52
5. Step 5: Solve for x
   x = 3,869,998.52/2,777.69
6. Step 6: Final answer
   x = 1,393.24