Finding the Fourth Proportional to 1,827.89, 2,739.27 and 1,415.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,827.89 : 2,739.27 = 1,415.14 : x
2. Step 2: Convert to fraction form
   1,827.89/2,739.27 = 1,415.14/x
3. Step 3: Cross multiply
   1,827.89x = 2,739.27 × 1,415.14
4. Step 4: Simplify right side
   1,827.89x = 3,876,450.55
5. Step 5: Solve for x
   x = 3,876,450.55/1,827.89
6. Step 6: Final answer
   x = 2,120.72