Finding the Fourth Proportional to 1,987.59, 2,742.76 and 1,103.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,987.59 : 2,742.76 = 1,103.34 : x
2. Step 2: Convert to fraction form
   1,987.59/2,742.76 = 1,103.34/x
3. Step 3: Cross multiply
   1,987.59x = 2,742.76 × 1,103.34
4. Step 4: Simplify right side
   1,987.59x = 3,026,196.82
5. Step 5: Solve for x
   x = 3,026,196.82/1,987.59
6. Step 6: Final answer
   x = 1,522.55