Finding the Fourth Proportional to 1,981.50, 2,734.47 and 1,153.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,981.50 : 2,734.47 = 1,153.50 : x
2. Step 2: Convert to fraction form
   1,981.50/2,734.47 = 1,153.50/x
3. Step 3: Cross multiply
   1,981.50x = 2,734.47 × 1,153.50
4. Step 4: Simplify right side
   1,981.50x = 3,154,211.15
5. Step 5: Solve for x
   x = 3,154,211.15/1,981.50
6. Step 6: Final answer
   x = 1,591.83