Finding the Fourth Proportional to 1,400.30, 1,932.06 and 840.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,400.30 : 1,932.06 = 840.82 : x
2. Step 2: Convert to fraction form
   1,400.30/1,932.06 = 840.82/x
3. Step 3: Cross multiply
   1,400.30x = 1,932.06 × 840.82
4. Step 4: Simplify right side
   1,400.30x = 1,624,514.69
5. Step 5: Solve for x
   x = 1,624,514.69/1,400.30
6. Step 6: Final answer
   x = 1,160.12