Finding the Fourth Proportional to 1,432.55, 2,145.52 and 1,383.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.55 : 2,145.52 = 1,383.30 : x
2. Step 2: Convert to fraction form
   1,432.55/2,145.52 = 1,383.30/x
3. Step 3: Cross multiply
   1,432.55x = 2,145.52 × 1,383.30
4. Step 4: Simplify right side
   1,432.55x = 2,967,897.82
5. Step 5: Solve for x
   x = 2,967,897.82/1,432.55
6. Step 6: Final answer
   x = 2,071.76