Finding the Fourth Proportional to 1,930.72, 2,895.48 and 1,284.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,930.72 : 2,895.48 = 1,284.88 : x
2. Step 2: Convert to fraction form
   1,930.72/2,895.48 = 1,284.88/x
3. Step 3: Cross multiply
   1,930.72x = 2,895.48 × 1,284.88
4. Step 4: Simplify right side
   1,930.72x = 3,720,344.34
5. Step 5: Solve for x
   x = 3,720,344.34/1,930.72
6. Step 6: Final answer
   x = 1,926.92