Finding the Fourth Proportional to 3,985.49, 5,980.82 and 1,677.01

Step by Step Solution

1. Step 1: Write the proportion equation
   3,985.49 : 5,980.82 = 1,677.01 : x
2. Step 2: Convert to fraction form
   3,985.49/5,980.82 = 1,677.01/x
3. Step 3: Cross multiply
   3,985.49x = 5,980.82 × 1,677.01
4. Step 4: Simplify right side
   3,985.49x = 10,029,886.56
5. Step 5: Solve for x
   x = 10,029,886.56/3,985.49
6. Step 6: Final answer
   x = 2,516.60