Finding the Fourth Proportional to 1,401.55, 1,933.45 and 841.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.55 : 1,933.45 = 841.91 : x
2. Step 2: Convert to fraction form
   1,401.55/1,933.45 = 841.91/x
3. Step 3: Cross multiply
   1,401.55x = 1,933.45 × 841.91
4. Step 4: Simplify right side
   1,401.55x = 1,627,779.12
5. Step 5: Solve for x
   x = 1,627,779.12/1,401.55
6. Step 6: Final answer
   x = 1,161.42