Finding the Fourth Proportional to 1,713.35, 2,557.22 and 1,478.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,713.35 : 2,557.22 = 1,478.05 : x
2. Step 2: Convert to fraction form
   1,713.35/2,557.22 = 1,478.05/x
3. Step 3: Cross multiply
   1,713.35x = 2,557.22 × 1,478.05
4. Step 4: Simplify right side
   1,713.35x = 3,779,693.55
5. Step 5: Solve for x
   x = 3,779,693.55/1,713.35
6. Step 6: Final answer
   x = 2,206.02