Finding the Fourth Proportional to 1,900.56, 2,848.52 and 860.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,900.56 : 2,848.52 = 860.29 : x
2. Step 2: Convert to fraction form
   1,900.56/2,848.52 = 860.29/x
3. Step 3: Cross multiply
   1,900.56x = 2,848.52 × 860.29
4. Step 4: Simplify right side
   1,900.56x = 2,450,543.46
5. Step 5: Solve for x
   x = 2,450,543.46/1,900.56
6. Step 6: Final answer
   x = 1,289.38