Finding the Fourth Proportional to 2,490.08, 3,733.82 and 1,320.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,490.08 : 3,733.82 = 1,320.74 : x
2. Step 2: Convert to fraction form
   2,490.08/3,733.82 = 1,320.74/x
3. Step 3: Cross multiply
   2,490.08x = 3,733.82 × 1,320.74
4. Step 4: Simplify right side
   2,490.08x = 4,931,380.15
5. Step 5: Solve for x
   x = 4,931,380.15/2,490.08
6. Step 6: Final answer
   x = 1,980.41