Finding the Fourth Proportional to 1,500.02, 2,069.48 and 870.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,500.02 : 2,069.48 = 870.20 : x
2. Step 2: Convert to fraction form
   1,500.02/2,069.48 = 870.20/x
3. Step 3: Cross multiply
   1,500.02x = 2,069.48 × 870.20
4. Step 4: Simplify right side
   1,500.02x = 1,800,846.80
5. Step 5: Solve for x
   x = 1,800,846.80/1,500.02
6. Step 6: Final answer
   x = 1,200.55