Finding the Fourth Proportional to 1,340.82, 2,010.56 and 560.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,340.82 : 2,010.56 = 560.59 : x
2. Step 2: Convert to fraction form
   1,340.82/2,010.56 = 560.59/x
3. Step 3: Cross multiply
   1,340.82x = 2,010.56 × 560.59
4. Step 4: Simplify right side
   1,340.82x = 1,127,099.83
5. Step 5: Solve for x
   x = 1,127,099.83/1,340.82
6. Step 6: Final answer
   x = 840.60