Finding the Fourth Proportional to 1,804.59, 2,490.39 and 1,266.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,804.59 : 2,490.39 = 1,266.30 : x
2. Step 2: Convert to fraction form
   1,804.59/2,490.39 = 1,266.30/x
3. Step 3: Cross multiply
   1,804.59x = 2,490.39 × 1,266.30
4. Step 4: Simplify right side
   1,804.59x = 3,153,580.86
5. Step 5: Solve for x
   x = 3,153,580.86/1,804.59
6. Step 6: Final answer
   x = 1,747.53