Finding the Fourth Proportional to 2,104.30, 2,904.02 and 1,318.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104.30 : 2,904.02 = 1,318.06 : x
2. Step 2: Convert to fraction form
   2,104.30/2,904.02 = 1,318.06/x
3. Step 3: Cross multiply
   2,104.30x = 2,904.02 × 1,318.06
4. Step 4: Simplify right side
   2,104.30x = 3,827,672.60
5. Step 5: Solve for x
   x = 3,827,672.60/2,104.30
6. Step 6: Final answer
   x = 1,818.98