Finding the Fourth Proportional to 2,051.94, 3,078.42 and 591.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,051.94 : 3,078.42 = 591.21 : x
2. Step 2: Convert to fraction form
   2,051.94/3,078.42 = 591.21/x
3. Step 3: Cross multiply
   2,051.94x = 3,078.42 × 591.21
4. Step 4: Simplify right side
   2,051.94x = 1,819,992.69
5. Step 5: Solve for x
   x = 1,819,992.69/2,051.94
6. Step 6: Final answer
   x = 886.96