Finding the Fourth Proportional to 2,485.89, 3,430.35 and 1,437.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.89 : 3,430.35 = 1,437.75 : x
2. Step 2: Convert to fraction form
   2,485.89/3,430.35 = 1,437.75/x
3. Step 3: Cross multiply
   2,485.89x = 3,430.35 × 1,437.75
4. Step 4: Simplify right side
   2,485.89x = 4,931,985.71
5. Step 5: Solve for x
   x = 4,931,985.71/2,485.89
6. Step 6: Final answer
   x = 1,983.99