Finding the Fourth Proportional to 1,400.90, 1,933.37 and 841.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,400.90 : 1,933.37 = 841.69 : x
2. Step 2: Convert to fraction form
   1,400.90/1,933.37 = 841.69/x
3. Step 3: Cross multiply
   1,400.90x = 1,933.37 × 841.69
4. Step 4: Simplify right side
   1,400.90x = 1,627,299.56
5. Step 5: Solve for x
   x = 1,627,299.56/1,400.90
6. Step 6: Final answer
   x = 1,161.61