Finding the Fourth Proportional to 2,903.35, 4,355.09 and 712.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,903.35 : 4,355.09 = 712.10 : x
2. Step 2: Convert to fraction form
   2,903.35/4,355.09 = 712.10/x
3. Step 3: Cross multiply
   2,903.35x = 4,355.09 × 712.10
4. Step 4: Simplify right side
   2,903.35x = 3,101,259.59
5. Step 5: Solve for x
   x = 3,101,259.59/2,903.35
6. Step 6: Final answer
   x = 1,068.17