Finding the Fourth Proportional to 2,041.70, 3,059.90 and 987.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,041.70 : 3,059.90 = 987.98 : x
2. Step 2: Convert to fraction form
   2,041.70/3,059.90 = 987.98/x
3. Step 3: Cross multiply
   2,041.70x = 3,059.90 × 987.98
4. Step 4: Simplify right side
   2,041.70x = 3,023,099.76
5. Step 5: Solve for x
   x = 3,023,099.76/2,041.70
6. Step 6: Final answer
   x = 1,480.68