Finding the Fourth Proportional to 2,577.75, 3,557.30 and 1,530.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.75 : 3,557.30 = 1,530.02 : x
2. Step 2: Convert to fraction form
   2,577.75/3,557.30 = 1,530.02/x
3. Step 3: Cross multiply
   2,577.75x = 3,557.30 × 1,530.02
4. Step 4: Simplify right side
   2,577.75x = 5,442,714.71
5. Step 5: Solve for x
   x = 5,442,714.71/2,577.75
6. Step 6: Final answer
   x = 2,111.42