Finding the Fourth Proportional to 1,809.41, 2,495.61 and 1,313.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,809.41 : 2,495.61 = 1,313.69 : x
2. Step 2: Convert to fraction form
   1,809.41/2,495.61 = 1,313.69/x
3. Step 3: Cross multiply
   1,809.41x = 2,495.61 × 1,313.69
4. Step 4: Simplify right side
   1,809.41x = 3,278,445.42
5. Step 5: Solve for x
   x = 3,278,445.42/1,809.41
6. Step 6: Final answer
   x = 1,811.89