Finding the Fourth Proportional to 2,538.32, 3,502.56 and 1,490

Step by Step Solution

1. Step 1: Write the proportion equation
   2,538.32 : 3,502.56 = 1,490 : x
2. Step 2: Convert to fraction form
   2,538.32/3,502.56 = 1,490/x
3. Step 3: Cross multiply
   2,538.32x = 3,502.56 × 1,490
4. Step 4: Simplify right side
   2,538.32x = 5,218,814.40
5. Step 5: Solve for x
   x = 5,218,814.40/2,538.32
6. Step 6: Final answer
   x = 2,056.01