Finding the Fourth Proportional to 1,404.10, 2,104.44 and 993.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.10 : 2,104.44 = 993.35 : x
2. Step 2: Convert to fraction form
   1,404.10/2,104.44 = 993.35/x
3. Step 3: Cross multiply
   1,404.10x = 2,104.44 × 993.35
4. Step 4: Simplify right side
   1,404.10x = 2,090,445.47
5. Step 5: Solve for x
   x = 2,090,445.47/1,404.10
6. Step 6: Final answer
   x = 1,488.82