Finding the Fourth Proportional to 1,662.63, 2,494.31 and 1,013.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662.63 : 2,494.31 = 1,013.91 : x
2. Step 2: Convert to fraction form
   1,662.63/2,494.31 = 1,013.91/x
3. Step 3: Cross multiply
   1,662.63x = 2,494.31 × 1,013.91
4. Step 4: Simplify right side
   1,662.63x = 2,529,000.78
5. Step 5: Solve for x
   x = 2,529,000.78/1,662.63
6. Step 6: Final answer
   x = 1,521.08