Finding the Fourth Proportional to 1,510.03, 2,083.83 and 920.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.03 : 2,083.83 = 920.57 : x
2. Step 2: Convert to fraction form
   1,510.03/2,083.83 = 920.57/x
3. Step 3: Cross multiply
   1,510.03x = 2,083.83 × 920.57
4. Step 4: Simplify right side
   1,510.03x = 1,918,300.96
5. Step 5: Solve for x
   x = 1,918,300.96/1,510.03
6. Step 6: Final answer
   x = 1,270.37