Finding the Fourth Proportional to 2,093.30, 3,140.55 and 998.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,093.30 : 3,140.55 = 998.58 : x
2. Step 2: Convert to fraction form
   2,093.30/3,140.55 = 998.58/x
3. Step 3: Cross multiply
   2,093.30x = 3,140.55 × 998.58
4. Step 4: Simplify right side
   2,093.30x = 3,136,090.42
5. Step 5: Solve for x
   x = 3,136,090.42/2,093.30
6. Step 6: Final answer
   x = 1,498.16