Finding the Fourth Proportional to 1,860.27, 2,564.96 and 1,197.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,860.27 : 2,564.96 = 1,197.15 : x
2. Step 2: Convert to fraction form
   1,860.27/2,564.96 = 1,197.15/x
3. Step 3: Cross multiply
   1,860.27x = 2,564.96 × 1,197.15
4. Step 4: Simplify right side
   1,860.27x = 3,070,641.86
5. Step 5: Solve for x
   x = 3,070,641.86/1,860.27
6. Step 6: Final answer
   x = 1,650.64