Finding the Fourth Proportional to 3,380.32, 5,066.29 and 1,915.03

Step by Step Solution

1. Step 1: Write the proportion equation
   3,380.32 : 5,066.29 = 1,915.03 : x
2. Step 2: Convert to fraction form
   3,380.32/5,066.29 = 1,915.03/x
3. Step 3: Cross multiply
   3,380.32x = 5,066.29 × 1,915.03
4. Step 4: Simplify right side
   3,380.32x = 9,702,097.34
5. Step 5: Solve for x
   x = 9,702,097.34/3,380.32
6. Step 6: Final answer
   x = 2,870.17