Finding the Fourth Proportional to 7,002.88, 10,500.60 and 2,071.84

Step by Step Solution

1. Step 1: Write the proportion equation
   7,002.88 : 10,500.60 = 2,071.84 : x
2. Step 2: Convert to fraction form
   7,002.88/10,500.60 = 2,071.84/x
3. Step 3: Cross multiply
   7,002.88x = 10,500.60 × 2,071.84
4. Step 4: Simplify right side
   7,002.88x = 21,755,510.60
5. Step 5: Solve for x
   x = 21,755,510.60/7,002.88
6. Step 6: Final answer
   x = 3,106.65