Finding the Fourth Proportional to 1,152.15, 1,719.51 and 1,074.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152.15 : 1,719.51 = 1,074.12 : x
2. Step 2: Convert to fraction form
   1,152.15/1,719.51 = 1,074.12/x
3. Step 3: Cross multiply
   1,152.15x = 1,719.51 × 1,074.12
4. Step 4: Simplify right side
   1,152.15x = 1,846,960.08
5. Step 5: Solve for x
   x = 1,846,960.08/1,152.15
6. Step 6: Final answer
   x = 1,603.06