Finding the Fourth Proportional to 2,577.84, 3,557.76 and 1,530.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.84 : 3,557.76 = 1,530.48 : x
2. Step 2: Convert to fraction form
   2,577.84/3,557.76 = 1,530.48/x
3. Step 3: Cross multiply
   2,577.84x = 3,557.76 × 1,530.48
4. Step 4: Simplify right side
   2,577.84x = 5,445,080.52
5. Step 5: Solve for x
   x = 5,445,080.52/2,577.84
6. Step 6: Final answer
   x = 2,112.26