Finding the Fourth Proportional to 3,140.69, 4,333.91 and 1,813.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,140.69 : 4,333.91 = 1,813.50 : x
2. Step 2: Convert to fraction form
   3,140.69/4,333.91 = 1,813.50/x
3. Step 3: Cross multiply
   3,140.69x = 4,333.91 × 1,813.50
4. Step 4: Simplify right side
   3,140.69x = 7,859,536.72
5. Step 5: Solve for x
   x = 7,859,536.72/3,140.69
6. Step 6: Final answer
   x = 2,502.49