Finding the Fourth Proportional to 2,577.83, 3,866.67 and 728.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.83 : 3,866.67 = 728.93 : x
2. Step 2: Convert to fraction form
   2,577.83/3,866.67 = 728.93/x
3. Step 3: Cross multiply
   2,577.83x = 3,866.67 × 728.93
4. Step 4: Simplify right side
   2,577.83x = 2,818,541.43
5. Step 5: Solve for x
   x = 2,818,541.43/2,577.83
6. Step 6: Final answer
   x = 1,093.38