Finding the Fourth Proportional to 1,363.61, 1,881.83 and 965.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.61 : 1,881.83 = 965.99 : x
2. Step 2: Convert to fraction form
   1,363.61/1,881.83 = 965.99/x
3. Step 3: Cross multiply
   1,363.61x = 1,881.83 × 965.99
4. Step 4: Simplify right side
   1,363.61x = 1,817,828.96
5. Step 5: Solve for x
   x = 1,817,828.96/1,363.61
6. Step 6: Final answer
   x = 1,333.10