Finding the Fourth Proportional to 3,870.34, 5,805.03 and 2,290.00

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.34 : 5,805.03 = 2,290.00 : x
2. Step 2: Convert to fraction form
   3,870.34/5,805.03 = 2,290.00/x
3. Step 3: Cross multiply
   3,870.34x = 5,805.03 × 2,290.00
4. Step 4: Simplify right side
   3,870.34x = 13,293,504.19
5. Step 5: Solve for x
   x = 13,293,504.19/3,870.34
6. Step 6: Final answer
   x = 3,434.71