Finding the Fourth Proportional to 3,781.59, 5,673.34 and 1,316.45

Step by Step Solution

1. Step 1: Write the proportion equation
   3,781.59 : 5,673.34 = 1,316.45 : x
2. Step 2: Convert to fraction form
   3,781.59/5,673.34 = 1,316.45/x
3. Step 3: Cross multiply
   3,781.59x = 5,673.34 × 1,316.45
4. Step 4: Simplify right side
   3,781.59x = 7,468,684.27
5. Step 5: Solve for x
   x = 7,468,684.27/3,781.59
6. Step 6: Final answer
   x = 1,975.01