Finding the Fourth Proportional to 2,929.60, 4,394.72 and 981.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,929.60 : 4,394.72 = 981.92 : x
2. Step 2: Convert to fraction form
   2,929.60/4,394.72 = 981.92/x
3. Step 3: Cross multiply
   2,929.60x = 4,394.72 × 981.92
4. Step 4: Simplify right side
   2,929.60x = 4,315,263.46
5. Step 5: Solve for x
   x = 4,315,263.46/2,929.60
6. Step 6: Final answer
   x = 1,472.99