Finding the Fourth Proportional to 2,907.83, 4,012.52 and 1,728.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,907.83 : 4,012.52 = 1,728.69 : x
2. Step 2: Convert to fraction form
   2,907.83/4,012.52 = 1,728.69/x
3. Step 3: Cross multiply
   2,907.83x = 4,012.52 × 1,728.69
4. Step 4: Simplify right side
   2,907.83x = 6,936,394.56
5. Step 5: Solve for x
   x = 6,936,394.56/2,907.83
6. Step 6: Final answer
   x = 2,385.42