Finding the Fourth Proportional to 4,694.10, 7,042.56 and 1,407.30

Step by Step Solution

1. Step 1: Write the proportion equation
   4,694.10 : 7,042.56 = 1,407.30 : x
2. Step 2: Convert to fraction form
   4,694.10/7,042.56 = 1,407.30/x
3. Step 3: Cross multiply
   4,694.10x = 7,042.56 × 1,407.30
4. Step 4: Simplify right side
   4,694.10x = 9,910,994.69
5. Step 5: Solve for x
   x = 9,910,994.69/4,694.10
6. Step 6: Final answer
   x = 2,111.37