Finding the Fourth Proportional to 2,907.39, 4,359.87 and 1,152.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,907.39 : 4,359.87 = 1,152.12 : x
2. Step 2: Convert to fraction form
   2,907.39/4,359.87 = 1,152.12/x
3. Step 3: Cross multiply
   2,907.39x = 4,359.87 × 1,152.12
4. Step 4: Simplify right side
   2,907.39x = 5,023,093.42
5. Step 5: Solve for x
   x = 5,023,093.42/2,907.39
6. Step 6: Final answer
   x = 1,727.70