Finding the Fourth Proportional to 1,535.09, 2,118.42 and 836.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,535.09 : 2,118.42 = 836.46 : x
2. Step 2: Convert to fraction form
   1,535.09/2,118.42 = 836.46/x
3. Step 3: Cross multiply
   1,535.09x = 2,118.42 × 836.46
4. Step 4: Simplify right side
   1,535.09x = 1,771,973.59
5. Step 5: Solve for x
   x = 1,771,973.59/1,535.09
6. Step 6: Final answer
   x = 1,154.32