Finding the Fourth Proportional to 2,485.31, 3,430.37 and 1,437.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.31 : 3,430.37 = 1,437.98 : x
2. Step 2: Convert to fraction form
   2,485.31/3,430.37 = 1,437.98/x
3. Step 3: Cross multiply
   2,485.31x = 3,430.37 × 1,437.98
4. Step 4: Simplify right side
   2,485.31x = 4,932,815.62
5. Step 5: Solve for x
   x = 4,932,815.62/2,485.31
6. Step 6: Final answer
   x = 1,984.79