Finding the Fourth Proportional to 2,025.65, 2,795.31 and 1,129.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,025.65 : 2,795.31 = 1,129.34 : x
2. Step 2: Convert to fraction form
   2,025.65/2,795.31 = 1,129.34/x
3. Step 3: Cross multiply
   2,025.65x = 2,795.31 × 1,129.34
4. Step 4: Simplify right side
   2,025.65x = 3,156,855.40
5. Step 5: Solve for x
   x = 3,156,855.40/2,025.65
6. Step 6: Final answer
   x = 1,558.44