Finding the Fourth Proportional to 1,380.72, 2,069.06 and 1,032.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,380.72 : 2,069.06 = 1,032.42 : x
2. Step 2: Convert to fraction form
   1,380.72/2,069.06 = 1,032.42/x
3. Step 3: Cross multiply
   1,380.72x = 2,069.06 × 1,032.42
4. Step 4: Simplify right side
   1,380.72x = 2,136,133.76
5. Step 5: Solve for x
   x = 2,136,133.76/1,380.72
6. Step 6: Final answer
   x = 1,547.12