Finding the Fourth Proportional to 1,334.40, 1,840.38 and 836.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,334.40 : 1,840.38 = 836.10 : x
2. Step 2: Convert to fraction form
   1,334.40/1,840.38 = 836.10/x
3. Step 3: Cross multiply
   1,334.40x = 1,840.38 × 836.10
4. Step 4: Simplify right side
   1,334.40x = 1,538,741.72
5. Step 5: Solve for x
   x = 1,538,741.72/1,334.40
6. Step 6: Final answer
   x = 1,153.13