Finding the Fourth Proportional to 1,432.62, 1,975.69 and 1,007.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.62 : 1,975.69 = 1,007.03 : x
2. Step 2: Convert to fraction form
   1,432.62/1,975.69 = 1,007.03/x
3. Step 3: Cross multiply
   1,432.62x = 1,975.69 × 1,007.03
4. Step 4: Simplify right side
   1,432.62x = 1,989,585.30
5. Step 5: Solve for x
   x = 1,989,585.30/1,432.62
6. Step 6: Final answer
   x = 1,388.77