Finding the Fourth Proportional to 3,914.76, 5,870.16 and 1,317.36

Step by Step Solution

1. Step 1: Write the proportion equation
   3,914.76 : 5,870.16 = 1,317.36 : x
2. Step 2: Convert to fraction form
   3,914.76/5,870.16 = 1,317.36/x
3. Step 3: Cross multiply
   3,914.76x = 5,870.16 × 1,317.36
4. Step 4: Simplify right side
   3,914.76x = 7,733,113.98
5. Step 5: Solve for x
   x = 7,733,113.98/3,914.76
6. Step 6: Final answer
   x = 1,975.37