Finding the Fourth Proportional to 1,943.33, 2,663.45 and 1,921.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,943.33 : 2,663.45 = 1,921.46 : x
2. Step 2: Convert to fraction form
   1,943.33/2,663.45 = 1,921.46/x
3. Step 3: Cross multiply
   1,943.33x = 2,663.45 × 1,921.46
4. Step 4: Simplify right side
   1,943.33x = 5,117,696.92
5. Step 5: Solve for x
   x = 5,117,696.92/1,943.33
6. Step 6: Final answer
   x = 2,633.47