Finding the Fourth Proportional to 2,530.78, 3,492.35 and 1,411.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,530.78 : 3,492.35 = 1,411.68 : x
2. Step 2: Convert to fraction form
   2,530.78/3,492.35 = 1,411.68/x
3. Step 3: Cross multiply
   2,530.78x = 3,492.35 × 1,411.68
4. Step 4: Simplify right side
   2,530.78x = 4,930,080.65
5. Step 5: Solve for x
   x = 4,930,080.65/2,530.78
6. Step 6: Final answer
   x = 1,948.05