Finding the Fourth Proportional to 2,209.59, 3,048.93 and 1,313.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,209.59 : 3,048.93 = 1,313.10 : x
2. Step 2: Convert to fraction form
   2,209.59/3,048.93 = 1,313.10/x
3. Step 3: Cross multiply
   2,209.59x = 3,048.93 × 1,313.10
4. Step 4: Simplify right side
   2,209.59x = 4,003,549.98
5. Step 5: Solve for x
   x = 4,003,549.98/2,209.59
6. Step 6: Final answer
   x = 1,811.90