Finding the Fourth Proportional to 1,464.15, 2,194.59 and 915.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,464.15 : 2,194.59 = 915.57 : x
2. Step 2: Convert to fraction form
   1,464.15/2,194.59 = 915.57/x
3. Step 3: Cross multiply
   1,464.15x = 2,194.59 × 915.57
4. Step 4: Simplify right side
   1,464.15x = 2,009,300.77
5. Step 5: Solve for x
   x = 2,009,300.77/1,464.15
6. Step 6: Final answer
   x = 1,372.33