Finding the Fourth Proportional to 1,483.56, 2,046.66 and 916.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,483.56 : 2,046.66 = 916.20 : x
2. Step 2: Convert to fraction form
   1,483.56/2,046.66 = 916.20/x
3. Step 3: Cross multiply
   1,483.56x = 2,046.66 × 916.20
4. Step 4: Simplify right side
   1,483.56x = 1,875,149.89
5. Step 5: Solve for x
   x = 1,875,149.89/1,483.56
6. Step 6: Final answer
   x = 1,263.95