Finding the Fourth Proportional to 5,776.38, 8,664.50 and 1,393.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,776.38 : 8,664.50 = 1,393.82 : x
2. Step 2: Convert to fraction form
   5,776.38/8,664.50 = 1,393.82/x
3. Step 3: Cross multiply
   5,776.38x = 8,664.50 × 1,393.82
4. Step 4: Simplify right side
   5,776.38x = 12,076,703.10
5. Step 5: Solve for x
   x = 12,076,703.10/5,776.38
6. Step 6: Final answer
   x = 2,090.70