Finding the Fourth Proportional to 1,487.90, 2,054.69 and 957.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,487.90 : 2,054.69 = 957.71 : x
2. Step 2: Convert to fraction form
   1,487.90/2,054.69 = 957.71/x
3. Step 3: Cross multiply
   1,487.90x = 2,054.69 × 957.71
4. Step 4: Simplify right side
   1,487.90x = 1,967,789.28
5. Step 5: Solve for x
   x = 1,967,789.28/1,487.90
6. Step 6: Final answer
   x = 1,322.53