Finding the Fourth Proportional to 1,427.59, 2,140.17 and 849.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427.59 : 2,140.17 = 849.25 : x
2. Step 2: Convert to fraction form
   1,427.59/2,140.17 = 849.25/x
3. Step 3: Cross multiply
   1,427.59x = 2,140.17 × 849.25
4. Step 4: Simplify right side
   1,427.59x = 1,817,539.37
5. Step 5: Solve for x
   x = 1,817,539.37/1,427.59
6. Step 6: Final answer
   x = 1,273.15