Finding the Fourth Proportional to 2,104.17, 2,904.74 and 1,219.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104.17 : 2,904.74 = 1,219.82 : x
2. Step 2: Convert to fraction form
   2,104.17/2,904.74 = 1,219.82/x
3. Step 3: Cross multiply
   2,104.17x = 2,904.74 × 1,219.82
4. Step 4: Simplify right side
   2,104.17x = 3,543,239.32
5. Step 5: Solve for x
   x = 3,543,239.32/2,104.17
6. Step 6: Final answer
   x = 1,683.91