Finding the Fourth Proportional to 1,345.62, 2,019.51 and 696.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345.62 : 2,019.51 = 696.54 : x
2. Step 2: Convert to fraction form
   1,345.62/2,019.51 = 696.54/x
3. Step 3: Cross multiply
   1,345.62x = 2,019.51 × 696.54
4. Step 4: Simplify right side
   1,345.62x = 1,406,669.50
5. Step 5: Solve for x
   x = 1,406,669.50/1,345.62
6. Step 6: Final answer
   x = 1,045.37