Finding the Fourth Proportional to 1,345.82, 2,017.71 and 696.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345.82 : 2,017.71 = 696.20 : x
2. Step 2: Convert to fraction form
   1,345.82/2,017.71 = 696.20/x
3. Step 3: Cross multiply
   1,345.82x = 2,017.71 × 696.20
4. Step 4: Simplify right side
   1,345.82x = 1,404,719.61
5. Step 5: Solve for x
   x = 1,404,719.61/1,345.82
6. Step 6: Final answer
   x = 1,043.77