Finding the Fourth Proportional to 3,890.82, 5,832.59 and 1,291.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,890.82 : 5,832.59 = 1,291.94 : x
2. Step 2: Convert to fraction form
   3,890.82/5,832.59 = 1,291.94/x
3. Step 3: Cross multiply
   3,890.82x = 5,832.59 × 1,291.94
4. Step 4: Simplify right side
   3,890.82x = 7,535,356.32
5. Step 5: Solve for x
   x = 7,535,356.32/3,890.82
6. Step 6: Final answer
   x = 1,936.70