Finding the Fourth Proportional to 2,969.40, 4,427.16 and 2,892.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,969.40 : 4,427.16 = 2,892.48 : x
2. Step 2: Convert to fraction form
   2,969.40/4,427.16 = 2,892.48/x
3. Step 3: Cross multiply
   2,969.40x = 4,427.16 × 2,892.48
4. Step 4: Simplify right side
   2,969.40x = 12,805,471.76
5. Step 5: Solve for x
   x = 12,805,471.76/2,969.40
6. Step 6: Final answer
   x = 4,312.48