Finding the Fourth Proportional to 1,437.90, 1,984.32 and 799.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,437.90 : 1,984.32 = 799.89 : x
2. Step 2: Convert to fraction form
   1,437.90/1,984.32 = 799.89/x
3. Step 3: Cross multiply
   1,437.90x = 1,984.32 × 799.89
4. Step 4: Simplify right side
   1,437.90x = 1,587,237.72
5. Step 5: Solve for x
   x = 1,587,237.72/1,437.90
6. Step 6: Final answer
   x = 1,103.86