Finding the Fourth Proportional to 2,973.50, 4,105.29 and 1,911.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,973.50 : 4,105.29 = 1,911.74 : x
2. Step 2: Convert to fraction form
   2,973.50/4,105.29 = 1,911.74/x
3. Step 3: Cross multiply
   2,973.50x = 4,105.29 × 1,911.74
4. Step 4: Simplify right side
   2,973.50x = 7,848,247.10
5. Step 5: Solve for x
   x = 7,848,247.10/2,973.50
6. Step 6: Final answer
   x = 2,639.40