Finding the Fourth Proportional to 3,437.31, 5,155.71 and 1,097.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,437.31 : 5,155.71 = 1,097.22 : x
2. Step 2: Convert to fraction form
   3,437.31/5,155.71 = 1,097.22/x
3. Step 3: Cross multiply
   3,437.31x = 5,155.71 × 1,097.22
4. Step 4: Simplify right side
   3,437.31x = 5,656,948.13
5. Step 5: Solve for x
   x = 5,656,948.13/3,437.31
6. Step 6: Final answer
   x = 1,645.75