Finding the Fourth Proportional to 1,904.31, 2,605.32 and 1,896.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,904.31 : 2,605.32 = 1,896.12 : x
2. Step 2: Convert to fraction form
   1,904.31/2,605.32 = 1,896.12/x
3. Step 3: Cross multiply
   1,904.31x = 2,605.32 × 1,896.12
4. Step 4: Simplify right side
   1,904.31x = 4,939,999.36
5. Step 5: Solve for x
   x = 4,939,999.36/1,904.31
6. Step 6: Final answer
   x = 2,594.12