Finding the Fourth Proportional to 3,914.80, 5,870.98 and 1,317.13

Step by Step Solution

1. Step 1: Write the proportion equation
   3,914.80 : 5,870.98 = 1,317.13 : x
2. Step 2: Convert to fraction form
   3,914.80/5,870.98 = 1,317.13/x
3. Step 3: Cross multiply
   3,914.80x = 5,870.98 × 1,317.13
4. Step 4: Simplify right side
   3,914.80x = 7,732,843.89
5. Step 5: Solve for x
   x = 7,732,843.89/3,914.80
6. Step 6: Final answer
   x = 1,975.28