Finding the Fourth Proportional to 1,372.82, 1,894.22 and 783.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,372.82 : 1,894.22 = 783.24 : x
2. Step 2: Convert to fraction form
   1,372.82/1,894.22 = 783.24/x
3. Step 3: Cross multiply
   1,372.82x = 1,894.22 × 783.24
4. Step 4: Simplify right side
   1,372.82x = 1,483,628.87
5. Step 5: Solve for x
   x = 1,483,628.87/1,372.82
6. Step 6: Final answer
   x = 1,080.72