Finding the Fourth Proportional to 1,436.89, 2,153.28 and 706.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.89 : 2,153.28 = 706.98 : x
2. Step 2: Convert to fraction form
   1,436.89/2,153.28 = 706.98/x
3. Step 3: Cross multiply
   1,436.89x = 2,153.28 × 706.98
4. Step 4: Simplify right side
   1,436.89x = 1,522,324.51
5. Step 5: Solve for x
   x = 1,522,324.51/1,436.89
6. Step 6: Final answer
   x = 1,059.46