Finding the Fourth Proportional to 2,071.50, 3,105.20 and 973.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.50 : 3,105.20 = 973.92 : x
2. Step 2: Convert to fraction form
   2,071.50/3,105.20 = 973.92/x
3. Step 3: Cross multiply
   2,071.50x = 3,105.20 × 973.92
4. Step 4: Simplify right side
   2,071.50x = 3,024,211.51
5. Step 5: Solve for x
   x = 3,024,211.51/2,071.50
6. Step 6: Final answer
   x = 1,459.91