Finding the Fourth Proportional to 1,585.95, 2,188.71 and 922.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,585.95 : 2,188.71 = 922.89 : x
2. Step 2: Convert to fraction form
   1,585.95/2,188.71 = 922.89/x
3. Step 3: Cross multiply
   1,585.95x = 2,188.71 × 922.89
4. Step 4: Simplify right side
   1,585.95x = 2,019,938.57
5. Step 5: Solve for x
   x = 2,019,938.57/1,585.95
6. Step 6: Final answer
   x = 1,273.65