Finding the Fourth Proportional to 1,994.56, 2,987.78 and 951.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,994.56 : 2,987.78 = 951.40 : x
2. Step 2: Convert to fraction form
   1,994.56/2,987.78 = 951.40/x
3. Step 3: Cross multiply
   1,994.56x = 2,987.78 × 951.40
4. Step 4: Simplify right side
   1,994.56x = 2,842,573.89
5. Step 5: Solve for x
   x = 2,842,573.89/1,994.56
6. Step 6: Final answer
   x = 1,425.16