Finding the Fourth Proportional to 1,606.37, 2,215.82 and 976.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,606.37 : 2,215.82 = 976.46 : x
2. Step 2: Convert to fraction form
   1,606.37/2,215.82 = 976.46/x
3. Step 3: Cross multiply
   1,606.37x = 2,215.82 × 976.46
4. Step 4: Simplify right side
   1,606.37x = 2,163,643.64
5. Step 5: Solve for x
   x = 2,163,643.64/1,606.37
6. Step 6: Final answer
   x = 1,346.92