Finding the Fourth Proportional to 1,488.71, 2,234.52 and 1,072.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.71 : 2,234.52 = 1,072.68 : x
2. Step 2: Convert to fraction form
   1,488.71/2,234.52 = 1,072.68/x
3. Step 3: Cross multiply
   1,488.71x = 2,234.52 × 1,072.68
4. Step 4: Simplify right side
   1,488.71x = 2,396,916.53
5. Step 5: Solve for x
   x = 2,396,916.53/1,488.71
6. Step 6: Final answer
   x = 1,610.06