Finding the Fourth Proportional to 1,999.03, 2,758.78 and 1,102.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,999.03 : 2,758.78 = 1,102.76 : x
2. Step 2: Convert to fraction form
   1,999.03/2,758.78 = 1,102.76/x
3. Step 3: Cross multiply
   1,999.03x = 2,758.78 × 1,102.76
4. Step 4: Simplify right side
   1,999.03x = 3,042,288.78
5. Step 5: Solve for x
   x = 3,042,288.78/1,999.03
6. Step 6: Final answer
   x = 1,521.88