Finding the Fourth Proportional to 2,150.37, 3,223.08 and 915.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.37 : 3,223.08 = 915.93 : x
2. Step 2: Convert to fraction form
   2,150.37/3,223.08 = 915.93/x
3. Step 3: Cross multiply
   2,150.37x = 3,223.08 × 915.93
4. Step 4: Simplify right side
   2,150.37x = 2,952,115.66
5. Step 5: Solve for x
   x = 2,952,115.66/2,150.37
6. Step 6: Final answer
   x = 1,372.84