Finding the Fourth Proportional to 2,904.12, 4,354.56 and 929.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,904.12 : 4,354.56 = 929.40 : x
2. Step 2: Convert to fraction form
   2,904.12/4,354.56 = 929.40/x
3. Step 3: Cross multiply
   2,904.12x = 4,354.56 × 929.40
4. Step 4: Simplify right side
   2,904.12x = 4,047,128.06
5. Step 5: Solve for x
   x = 4,047,128.06/2,904.12
6. Step 6: Final answer
   x = 1,393.58