Finding the Fourth Proportional to 1,981.65, 2,734.63 and 1,142.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,981.65 : 2,734.63 = 1,142.35 : x
2. Step 2: Convert to fraction form
   1,981.65/2,734.63 = 1,142.35/x
3. Step 3: Cross multiply
   1,981.65x = 2,734.63 × 1,142.35
4. Step 4: Simplify right side
   1,981.65x = 3,123,904.58
5. Step 5: Solve for x
   x = 3,123,904.58/1,981.65
6. Step 6: Final answer
   x = 1,576.42