Finding the Fourth Proportional to 2,365.55, 3,264.47 and 1,317.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,365.55 : 3,264.47 = 1,317.61 : x
2. Step 2: Convert to fraction form
   2,365.55/3,264.47 = 1,317.61/x
3. Step 3: Cross multiply
   2,365.55x = 3,264.47 × 1,317.61
4. Step 4: Simplify right side
   2,365.55x = 4,301,298.32
5. Step 5: Solve for x
   x = 4,301,298.32/2,365.55
6. Step 6: Final answer
   x = 1,818.31