Finding the Fourth Proportional to 1,510.18, 2,083.13 and 921.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.18 : 2,083.13 = 921.06 : x
2. Step 2: Convert to fraction form
   1,510.18/2,083.13 = 921.06/x
3. Step 3: Cross multiply
   1,510.18x = 2,083.13 × 921.06
4. Step 4: Simplify right side
   1,510.18x = 1,918,687.72
5. Step 5: Solve for x
   x = 1,918,687.72/1,510.18
6. Step 6: Final answer
   x = 1,270.50