Finding the Fourth Proportional to 1,411.71, 2,118.59 and 1,065.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.71 : 2,118.59 = 1,065.47 : x
2. Step 2: Convert to fraction form
   1,411.71/2,118.59 = 1,065.47/x
3. Step 3: Cross multiply
   1,411.71x = 2,118.59 × 1,065.47
4. Step 4: Simplify right side
   1,411.71x = 2,257,294.08
5. Step 5: Solve for x
   x = 2,257,294.08/1,411.71
6. Step 6: Final answer
   x = 1,598.98