Finding the Fourth Proportional to 2,485.33, 3,428.89 and 1,490.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.33 : 3,428.89 = 1,490.93 : x
2. Step 2: Convert to fraction form
   2,485.33/3,428.89 = 1,490.93/x
3. Step 3: Cross multiply
   2,485.33x = 3,428.89 × 1,490.93
4. Step 4: Simplify right side
   2,485.33x = 5,112,234.97
5. Step 5: Solve for x
   x = 5,112,234.97/2,485.33
6. Step 6: Final answer
   x = 2,056.96