Finding the Fourth Proportional to 1,938.47, 2,673.86 and 1,433.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,938.47 : 2,673.86 = 1,433.79 : x
2. Step 2: Convert to fraction form
   1,938.47/2,673.86 = 1,433.79/x
3. Step 3: Cross multiply
   1,938.47x = 2,673.86 × 1,433.79
4. Step 4: Simplify right side
   1,938.47x = 3,833,746.56
5. Step 5: Solve for x
   x = 3,833,746.56/1,938.47
6. Step 6: Final answer
   x = 1,977.72