Finding the Fourth Proportional to 1,345.50, 2,019.33 and 696.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345.50 : 2,019.33 = 696.42 : x
2. Step 2: Convert to fraction form
   1,345.50/2,019.33 = 696.42/x
3. Step 3: Cross multiply
   1,345.50x = 2,019.33 × 696.42
4. Step 4: Simplify right side
   1,345.50x = 1,406,301.80
5. Step 5: Solve for x
   x = 1,406,301.80/1,345.50
6. Step 6: Final answer
   x = 1,045.19