Finding the Fourth Proportional to 2,069.02, 2,855.21 and 1,137.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,069.02 : 2,855.21 = 1,137.50 : x
2. Step 2: Convert to fraction form
   2,069.02/2,855.21 = 1,137.50/x
3. Step 3: Cross multiply
   2,069.02x = 2,855.21 × 1,137.50
4. Step 4: Simplify right side
   2,069.02x = 3,247,801.38
5. Step 5: Solve for x
   x = 3,247,801.38/2,069.02
6. Step 6: Final answer
   x = 1,569.73