Finding the Fourth Proportional to 1,571.69, 2,353.88 and 1,517.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,571.69 : 2,353.88 = 1,517.01 : x
2. Step 2: Convert to fraction form
   1,571.69/2,353.88 = 1,517.01/x
3. Step 3: Cross multiply
   1,571.69x = 2,353.88 × 1,517.01
4. Step 4: Simplify right side
   1,571.69x = 3,570,851.91
5. Step 5: Solve for x
   x = 3,570,851.91/1,571.69
6. Step 6: Final answer
   x = 2,271.99