Finding the Fourth Proportional to 1,415.91, 2,111.17 and 1,361.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,415.91 : 2,111.17 = 1,361.73 : x
2. Step 2: Convert to fraction form
   1,415.91/2,111.17 = 1,361.73/x
3. Step 3: Cross multiply
   1,415.91x = 2,111.17 × 1,361.73
4. Step 4: Simplify right side
   1,415.91x = 2,874,840.12
5. Step 5: Solve for x
   x = 2,874,840.12/1,415.91
6. Step 6: Final answer
   x = 2,030.38