Finding the Fourth Proportional to 4,713.69, 7,070.90 and 1,427.05

Step by Step Solution

1. Step 1: Write the proportion equation
   4,713.69 : 7,070.90 = 1,427.05 : x
2. Step 2: Convert to fraction form
   4,713.69/7,070.90 = 1,427.05/x
3. Step 3: Cross multiply
   4,713.69x = 7,070.90 × 1,427.05
4. Step 4: Simplify right side
   4,713.69x = 10,090,529.55
5. Step 5: Solve for x
   x = 10,090,529.55/4,713.69
6. Step 6: Final answer
   x = 2,140.68