Finding the Fourth Proportional to 3,527.04, 5,300.64 and 2,380.80

Step by Step Solution

1. Step 1: Write the proportion equation
   3,527.04 : 5,300.64 = 2,380.80 : x
2. Step 2: Convert to fraction form
   3,527.04/5,300.64 = 2,380.80/x
3. Step 3: Cross multiply
   3,527.04x = 5,300.64 × 2,380.80
4. Step 4: Simplify right side
   3,527.04x = 12,619,763.71
5. Step 5: Solve for x
   x = 12,619,763.71/3,527.04
6. Step 6: Final answer
   x = 3,578.00