Finding the Fourth Proportional to 1,837.72, 2,536.08 and 998.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,837.72 : 2,536.08 = 998.42 : x
2. Step 2: Convert to fraction form
   1,837.72/2,536.08 = 998.42/x
3. Step 3: Cross multiply
   1,837.72x = 2,536.08 × 998.42
4. Step 4: Simplify right side
   1,837.72x = 2,532,079.33
5. Step 5: Solve for x
   x = 2,532,079.33/1,837.72
6. Step 6: Final answer
   x = 1,377.84