Finding the Fourth Proportional to 1,983.89, 2,736.56 and 1,275.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,983.89 : 2,736.56 = 1,275.50 : x
2. Step 2: Convert to fraction form
   1,983.89/2,736.56 = 1,275.50/x
3. Step 3: Cross multiply
   1,983.89x = 2,736.56 × 1,275.50
4. Step 4: Simplify right side
   1,983.89x = 3,490,492.31
5. Step 5: Solve for x
   x = 3,490,492.31/1,983.89
6. Step 6: Final answer
   x = 1,759.42