Finding the Fourth Proportional to 1,068.57, 1,591.61 and 1,001.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,068.57 : 1,591.61 = 1,001.07 : x
2. Step 2: Convert to fraction form
   1,068.57/1,591.61 = 1,001.07/x
3. Step 3: Cross multiply
   1,068.57x = 1,591.61 × 1,001.07
4. Step 4: Simplify right side
   1,068.57x = 1,593,308.02
5. Step 5: Solve for x
   x = 1,593,308.02/1,068.57
6. Step 6: Final answer
   x = 1,491.07