Finding the Fourth Proportional to 1,839.48, 2,760.60 and 1,147.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,839.48 : 2,760.60 = 1,147.16 : x
2. Step 2: Convert to fraction form
   1,839.48/2,760.60 = 1,147.16/x
3. Step 3: Cross multiply
   1,839.48x = 2,760.60 × 1,147.16
4. Step 4: Simplify right side
   1,839.48x = 3,166,836.09
5. Step 5: Solve for x
   x = 3,166,836.09/1,839.48
6. Step 6: Final answer
   x = 1,721.59