Finding the Fourth Proportional to 1,973.86, 2,955.72 and 1,915.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,973.86 : 2,955.72 = 1,915.46 : x
2. Step 2: Convert to fraction form
   1,973.86/2,955.72 = 1,915.46/x
3. Step 3: Cross multiply
   1,973.86x = 2,955.72 × 1,915.46
4. Step 4: Simplify right side
   1,973.86x = 5,661,563.43
5. Step 5: Solve for x
   x = 5,661,563.43/1,973.86
6. Step 6: Final answer
   x = 2,868.27