Finding the Fourth Proportional to 1,981.71, 2,969.33 and 1,401.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,981.71 : 2,969.33 = 1,401.75 : x
2. Step 2: Convert to fraction form
   1,981.71/2,969.33 = 1,401.75/x
3. Step 3: Cross multiply
   1,981.71x = 2,969.33 × 1,401.75
4. Step 4: Simplify right side
   1,981.71x = 4,162,251.32
5. Step 5: Solve for x
   x = 4,162,251.32/1,981.71
6. Step 6: Final answer
   x = 2,100.33