Finding the Fourth Proportional to 1,621.56, 2,429.85 and 1,092.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,621.56 : 2,429.85 = 1,092.49 : x
2. Step 2: Convert to fraction form
   1,621.56/2,429.85 = 1,092.49/x
3. Step 3: Cross multiply
   1,621.56x = 2,429.85 × 1,092.49
4. Step 4: Simplify right side
   1,621.56x = 2,654,592.37
5. Step 5: Solve for x
   x = 2,654,592.37/1,621.56
6. Step 6: Final answer
   x = 1,637.06