Finding the Fourth Proportional to 1,630.71, 2,445.61 and 1,260.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,630.71 : 2,445.61 = 1,260.28 : x
2. Step 2: Convert to fraction form
   1,630.71/2,445.61 = 1,260.28/x
3. Step 3: Cross multiply
   1,630.71x = 2,445.61 × 1,260.28
4. Step 4: Simplify right side
   1,630.71x = 3,082,153.37
5. Step 5: Solve for x
   x = 3,082,153.37/1,630.71
6. Step 6: Final answer
   x = 1,890.07