Finding the Fourth Proportional to 1,719.32, 2,577.72 and 1,103.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,719.32 : 2,577.72 = 1,103.72 : x
2. Step 2: Convert to fraction form
   1,719.32/2,577.72 = 1,103.72/x
3. Step 3: Cross multiply
   1,719.32x = 2,577.72 × 1,103.72
4. Step 4: Simplify right side
   1,719.32x = 2,845,081.12
5. Step 5: Solve for x
   x = 2,845,081.12/1,719.32
6. Step 6: Final answer
   x = 1,654.77