Finding the Fourth Proportional to 1,535.00, 2,118.31 and 836.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,535.00 : 2,118.31 = 836.38 : x
2. Step 2: Convert to fraction form
   1,535.00/2,118.31 = 836.38/x
3. Step 3: Cross multiply
   1,535.00x = 2,118.31 × 836.38
4. Step 4: Simplify right side
   1,535.00x = 1,771,710.28
5. Step 5: Solve for x
   x = 1,771,710.28/1,535.00
6. Step 6: Final answer
   x = 1,154.21