Finding the Fourth Proportional to 1,535.51, 2,119.06 and 836.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,535.51 : 2,119.06 = 836.91 : x
2. Step 2: Convert to fraction form
   1,535.51/2,119.06 = 836.91/x
3. Step 3: Cross multiply
   1,535.51x = 2,119.06 × 836.91
4. Step 4: Simplify right side
   1,535.51x = 1,773,458.32
5. Step 5: Solve for x
   x = 1,773,458.32/1,535.51
6. Step 6: Final answer
   x = 1,154.96