Finding the Fourth Proportional to 1,333.60, 1,838.70 and 836.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.60 : 1,838.70 = 836.06 : x
2. Step 2: Convert to fraction form
   1,333.60/1,838.70 = 836.06/x
3. Step 3: Cross multiply
   1,333.60x = 1,838.70 × 836.06
4. Step 4: Simplify right side
   1,333.60x = 1,537,254.33
5. Step 5: Solve for x
   x = 1,537,254.33/1,333.60
6. Step 6: Final answer
   x = 1,152.71