Finding the Fourth Proportional to 1,101.61, 1,641.22 and 1,049.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,101.61 : 1,641.22 = 1,049.37 : x
2. Step 2: Convert to fraction form
   1,101.61/1,641.22 = 1,049.37/x
3. Step 3: Cross multiply
   1,101.61x = 1,641.22 × 1,049.37
4. Step 4: Simplify right side
   1,101.61x = 1,722,238.25
5. Step 5: Solve for x
   x = 1,722,238.25/1,101.61
6. Step 6: Final answer
   x = 1,563.38