Finding the Fourth Proportional to 2,323.69, 3,484.62 and 861.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,323.69 : 3,484.62 = 861.84 : x
2. Step 2: Convert to fraction form
   2,323.69/3,484.62 = 861.84/x
3. Step 3: Cross multiply
   2,323.69x = 3,484.62 × 861.84
4. Step 4: Simplify right side
   2,323.69x = 3,003,184.90
5. Step 5: Solve for x
   x = 3,003,184.90/2,323.69
6. Step 6: Final answer
   x = 1,292.42