Finding the Fourth Proportional to 2,685.61, 4,029.86 and 1,146.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,685.61 : 4,029.86 = 1,146.25 : x
2. Step 2: Convert to fraction form
   2,685.61/4,029.86 = 1,146.25/x
3. Step 3: Cross multiply
   2,685.61x = 4,029.86 × 1,146.25
4. Step 4: Simplify right side
   2,685.61x = 4,619,221.29
5. Step 5: Solve for x
   x = 4,619,221.29/2,685.61
6. Step 6: Final answer
   x = 1,719.99