Finding the Fourth Proportional to 3,784.48, 5,670.42 and 1,317.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,784.48 : 5,670.42 = 1,317.94 : x
2. Step 2: Convert to fraction form
   3,784.48/5,670.42 = 1,317.94/x
3. Step 3: Cross multiply
   3,784.48x = 5,670.42 × 1,317.94
4. Step 4: Simplify right side
   3,784.48x = 7,473,273.33
5. Step 5: Solve for x
   x = 7,473,273.33/3,784.48
6. Step 6: Final answer
   x = 1,974.72