Finding the Fourth Proportional to 1,335.50, 1,841.41 and 916.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,335.50 : 1,841.41 = 916.06 : x
2. Step 2: Convert to fraction form
   1,335.50/1,841.41 = 916.06/x
3. Step 3: Cross multiply
   1,335.50x = 1,841.41 × 916.06
4. Step 4: Simplify right side
   1,335.50x = 1,686,842.04
5. Step 5: Solve for x
   x = 1,686,842.04/1,335.50
6. Step 6: Final answer
   x = 1,263.08