Finding the Fourth Proportional to 2,003.18, 2,763.93 and 1,437.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.18 : 2,763.93 = 1,437.80 : x
2. Step 2: Convert to fraction form
   2,003.18/2,763.93 = 1,437.80/x
3. Step 3: Cross multiply
   2,003.18x = 2,763.93 × 1,437.80
4. Step 4: Simplify right side
   2,003.18x = 3,973,978.55
5. Step 5: Solve for x
   x = 3,973,978.55/2,003.18
6. Step 6: Final answer
   x = 1,983.83