Finding the Fourth Proportional to 1,510.95, 2,081.21 and 1,068.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.95 : 2,081.21 = 1,068.09 : x
2. Step 2: Convert to fraction form
   1,510.95/2,081.21 = 1,068.09/x
3. Step 3: Cross multiply
   1,510.95x = 2,081.21 × 1,068.09
4. Step 4: Simplify right side
   1,510.95x = 2,222,914.25
5. Step 5: Solve for x
   x = 2,222,914.25/1,510.95
6. Step 6: Final answer
   x = 1,471.20