Finding the Fourth Proportional to 3,777.98, 5,667.78 and 1,437.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,777.98 : 5,667.78 = 1,437.89 : x
2. Step 2: Convert to fraction form
   3,777.98/5,667.78 = 1,437.89/x
3. Step 3: Cross multiply
   3,777.98x = 5,667.78 × 1,437.89
4. Step 4: Simplify right side
   3,777.98x = 8,149,644.18
5. Step 5: Solve for x
   x = 8,149,644.18/3,777.98
6. Step 6: Final answer
   x = 2,157.14