Finding the Fourth Proportional to 1,938.03, 2,674.15 and 1,098.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,938.03 : 2,674.15 = 1,098.56 : x
2. Step 2: Convert to fraction form
   1,938.03/2,674.15 = 1,098.56/x
3. Step 3: Cross multiply
   1,938.03x = 2,674.15 × 1,098.56
4. Step 4: Simplify right side
   1,938.03x = 2,937,714.22
5. Step 5: Solve for x
   x = 2,937,714.22/1,938.03
6. Step 6: Final answer
   x = 1,515.82