Finding the Fourth Proportional to 1,345.29, 2,019.15 and 696.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345.29 : 2,019.15 = 696.48 : x
2. Step 2: Convert to fraction form
   1,345.29/2,019.15 = 696.48/x
3. Step 3: Cross multiply
   1,345.29x = 2,019.15 × 696.48
4. Step 4: Simplify right side
   1,345.29x = 1,406,297.59
5. Step 5: Solve for x
   x = 1,406,297.59/1,345.29
6. Step 6: Final answer
   x = 1,045.35