Finding the Fourth Proportional to 2,365.71, 3,264.21 and 1,317.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,365.71 : 3,264.21 = 1,317.57 : x
2. Step 2: Convert to fraction form
   2,365.71/3,264.21 = 1,317.57/x
3. Step 3: Cross multiply
   2,365.71x = 3,264.21 × 1,317.57
4. Step 4: Simplify right side
   2,365.71x = 4,300,825.17
5. Step 5: Solve for x
   x = 4,300,825.17/2,365.71
6. Step 6: Final answer
   x = 1,817.98