Finding the Fourth Proportional to 1,345.14, 2,015.69 and 1,068.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345.14 : 2,015.69 = 1,068.12 : x
2. Step 2: Convert to fraction form
   1,345.14/2,015.69 = 1,068.12/x
3. Step 3: Cross multiply
   1,345.14x = 2,015.69 × 1,068.12
4. Step 4: Simplify right side
   1,345.14x = 2,152,993.46
5. Step 5: Solve for x
   x = 2,152,993.46/1,345.14
6. Step 6: Final answer
   x = 1,600.57