Finding the Fourth Proportional to 1,402.50, 2,104.71 and 490.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402.50 : 2,104.71 = 490.50 : x
2. Step 2: Convert to fraction form
   1,402.50/2,104.71 = 490.50/x
3. Step 3: Cross multiply
   1,402.50x = 2,104.71 × 490.50
4. Step 4: Simplify right side
   1,402.50x = 1,032,360.26
5. Step 5: Solve for x
   x = 1,032,360.26/1,402.50
6. Step 6: Final answer
   x = 736.09