Finding the Fourth Proportional to 1,335.29, 1,818.25 and 1,316.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,335.29 : 1,818.25 = 1,316.05 : x
2. Step 2: Convert to fraction form
   1,335.29/1,818.25 = 1,316.05/x
3. Step 3: Cross multiply
   1,335.29x = 1,818.25 × 1,316.05
4. Step 4: Simplify right side
   1,335.29x = 2,392,900.08
5. Step 5: Solve for x
   x = 2,392,900.08/1,335.29
6. Step 6: Final answer
   x = 1,792.05