Finding the Fourth Proportional to 2,994.82, 4,492.83 and 915.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,994.82 : 4,492.83 = 915.12 : x
2. Step 2: Convert to fraction form
   2,994.82/4,492.83 = 915.12/x
3. Step 3: Cross multiply
   2,994.82x = 4,492.83 × 915.12
4. Step 4: Simplify right side
   2,994.82x = 4,111,493.69
5. Step 5: Solve for x
   x = 4,111,493.69/2,994.82
6. Step 6: Final answer
   x = 1,372.87