Finding the Fourth Proportional to 2,316.51, 3,196.48 and 1,321.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,316.51 : 3,196.48 = 1,321.73 : x
2. Step 2: Convert to fraction form
   2,316.51/3,196.48 = 1,321.73/x
3. Step 3: Cross multiply
   2,316.51x = 3,196.48 × 1,321.73
4. Step 4: Simplify right side
   2,316.51x = 4,224,881.17
5. Step 5: Solve for x
   x = 4,224,881.17/2,316.51
6. Step 6: Final answer
   x = 1,823.81