Finding the Fourth Proportional to 1,510.62, 2,084.06 and 920.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.62 : 2,084.06 = 920.94 : x
2. Step 2: Convert to fraction form
   1,510.62/2,084.06 = 920.94/x
3. Step 3: Cross multiply
   1,510.62x = 2,084.06 × 920.94
4. Step 4: Simplify right side
   1,510.62x = 1,919,294.22
5. Step 5: Solve for x
   x = 1,919,294.22/1,510.62
6. Step 6: Final answer
   x = 1,270.53