Finding the Fourth Proportional to 2,607.69, 3,906.04 and 1,904.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.69 : 3,906.04 = 1,904.43 : x
2. Step 2: Convert to fraction form
   2,607.69/3,906.04 = 1,904.43/x
3. Step 3: Cross multiply
   2,607.69x = 3,906.04 × 1,904.43
4. Step 4: Simplify right side
   2,607.69x = 7,438,779.76
5. Step 5: Solve for x
   x = 7,438,779.76/2,607.69
6. Step 6: Final answer
   x = 2,852.63