Finding the Fourth Proportional to 2,128.32, 3,192.31 and 1,346.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.32 : 3,192.31 = 1,346.04 : x
2. Step 2: Convert to fraction form
   2,128.32/3,192.31 = 1,346.04/x
3. Step 3: Cross multiply
   2,128.32x = 3,192.31 × 1,346.04
4. Step 4: Simplify right side
   2,128.32x = 4,296,976.95
5. Step 5: Solve for x
   x = 4,296,976.95/2,128.32
6. Step 6: Final answer
   x = 2,018.95