Finding the Fourth Proportional to 2,003.91, 2,764.43 and 1,558.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.91 : 2,764.43 = 1,558.81 : x
2. Step 2: Convert to fraction form
   2,003.91/2,764.43 = 1,558.81/x
3. Step 3: Cross multiply
   2,003.91x = 2,764.43 × 1,558.81
4. Step 4: Simplify right side
   2,003.91x = 4,309,222.64
5. Step 5: Solve for x
   x = 4,309,222.64/2,003.91
6. Step 6: Final answer
   x = 2,150.41