Finding the Fourth Proportional to 1,429.52, 1,972.08 and 988.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.52 : 1,972.08 = 988.04 : x
2. Step 2: Convert to fraction form
   1,429.52/1,972.08 = 988.04/x
3. Step 3: Cross multiply
   1,429.52x = 1,972.08 × 988.04
4. Step 4: Simplify right side
   1,429.52x = 1,948,493.92
5. Step 5: Solve for x
   x = 1,948,493.92/1,429.52
6. Step 6: Final answer
   x = 1,363.04