Finding the Fourth Proportional to 1,860.43, 2,567.52 and 1,229.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,860.43 : 2,567.52 = 1,229.86 : x
2. Step 2: Convert to fraction form
   1,860.43/2,567.52 = 1,229.86/x
3. Step 3: Cross multiply
   1,860.43x = 2,567.52 × 1,229.86
4. Step 4: Simplify right side
   1,860.43x = 3,157,705.84
5. Step 5: Solve for x
   x = 3,157,705.84/1,860.43
6. Step 6: Final answer
   x = 1,697.30