Finding the Fourth Proportional to 3,573.32, 5,360.12 and 1,109.80

Step by Step Solution

1. Step 1: Write the proportion equation
   3,573.32 : 5,360.12 = 1,109.80 : x
2. Step 2: Convert to fraction form
   3,573.32/5,360.12 = 1,109.80/x
3. Step 3: Cross multiply
   3,573.32x = 5,360.12 × 1,109.80
4. Step 4: Simplify right side
   3,573.32x = 5,948,672.73
5. Step 5: Solve for x
   x = 5,948,672.73/3,573.32
6. Step 6: Final answer
   x = 1,664.75