Finding the Fourth Proportional to 5,290.84, 7,302.79 and 3,300.20

Step by Step Solution

1. Step 1: Write the proportion equation
   5,290.84 : 7,302.79 = 3,300.20 : x
2. Step 2: Convert to fraction form
   5,290.84/7,302.79 = 3,300.20/x
3. Step 3: Cross multiply
   5,290.84x = 7,302.79 × 3,300.20
4. Step 4: Simplify right side
   5,290.84x = 24,100,667.56
5. Step 5: Solve for x
   x = 24,100,667.56/5,290.84
6. Step 6: Final answer
   x = 4,555.17