Finding the Fourth Proportional to 1,640.56, 2,264.18 and 941.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,640.56 : 2,264.18 = 941.94 : x
2. Step 2: Convert to fraction form
   1,640.56/2,264.18 = 941.94/x
3. Step 3: Cross multiply
   1,640.56x = 2,264.18 × 941.94
4. Step 4: Simplify right side
   1,640.56x = 2,132,721.71
5. Step 5: Solve for x
   x = 2,132,721.71/1,640.56
6. Step 6: Final answer
   x = 1,300.00