Finding the Fourth Proportional to 1,890.32, 2,608.60 and 1,447.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,890.32 : 2,608.60 = 1,447.52 : x
2. Step 2: Convert to fraction form
   1,890.32/2,608.60 = 1,447.52/x
3. Step 3: Cross multiply
   1,890.32x = 2,608.60 × 1,447.52
4. Step 4: Simplify right side
   1,890.32x = 3,776,000.67
5. Step 5: Solve for x
   x = 3,776,000.67/1,890.32
6. Step 6: Final answer
   x = 1,997.55