Finding the Fourth Proportional to 2,406.74, 3,607.89 and 867.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,406.74 : 3,607.89 = 867.38 : x
2. Step 2: Convert to fraction form
   2,406.74/3,607.89 = 867.38/x
3. Step 3: Cross multiply
   2,406.74x = 3,607.89 × 867.38
4. Step 4: Simplify right side
   2,406.74x = 3,129,411.63
5. Step 5: Solve for x
   x = 3,129,411.63/2,406.74
6. Step 6: Final answer
   x = 1,300.27