Finding the Fourth Proportional to 1,380, 1,898.82 and 1,332.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,380 : 1,898.82 = 1,332.12 : x
2. Step 2: Convert to fraction form
   1,380/1,898.82 = 1,332.12/x
3. Step 3: Cross multiply
   1,380x = 1,898.82 × 1,332.12
4. Step 4: Simplify right side
   1,380x = 2,529,456.10
5. Step 5: Solve for x
   x = 2,529,456.10/1,380
6. Step 6: Final answer
   x = 1,832.94