Finding the Fourth Proportional to 1,662.21, 2,291.81 and 1,346.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662.21 : 2,291.81 = 1,346.31 : x
2. Step 2: Convert to fraction form
   1,662.21/2,291.81 = 1,346.31/x
3. Step 3: Cross multiply
   1,662.21x = 2,291.81 × 1,346.31
4. Step 4: Simplify right side
   1,662.21x = 3,085,486.72
5. Step 5: Solve for x
   x = 3,085,486.72/1,662.21
6. Step 6: Final answer
   x = 1,856.26