Finding the Fourth Proportional to 2,631.34, 3,938.73 and 1,804.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,631.34 : 3,938.73 = 1,804.78 : x
2. Step 2: Convert to fraction form
   2,631.34/3,938.73 = 1,804.78/x
3. Step 3: Cross multiply
   2,631.34x = 3,938.73 × 1,804.78
4. Step 4: Simplify right side
   2,631.34x = 7,108,541.13
5. Step 5: Solve for x
   x = 7,108,541.13/2,631.34
6. Step 6: Final answer
   x = 2,701.49