Finding the Fourth Proportional to 1,917.82, 2,640.06 and 1,419.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,917.82 : 2,640.06 = 1,419.52 : x
2. Step 2: Convert to fraction form
   1,917.82/2,640.06 = 1,419.52/x
3. Step 3: Cross multiply
   1,917.82x = 2,640.06 × 1,419.52
4. Step 4: Simplify right side
   1,917.82x = 3,747,597.67
5. Step 5: Solve for x
   x = 3,747,597.67/1,917.82
6. Step 6: Final answer
   x = 1,954.10