Finding the Fourth Proportional to 1,947.34, 2,921.49 and 906.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,947.34 : 2,921.49 = 906.52 : x
2. Step 2: Convert to fraction form
   1,947.34/2,921.49 = 906.52/x
3. Step 3: Cross multiply
   1,947.34x = 2,921.49 × 906.52
4. Step 4: Simplify right side
   1,947.34x = 2,648,389.11
5. Step 5: Solve for x
   x = 2,648,389.11/1,947.34
6. Step 6: Final answer
   x = 1,360.00