Finding the Fourth Proportional to 2,070.02, 3,104.76 and 915.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,070.02 : 3,104.76 = 915.50 : x
2. Step 2: Convert to fraction form
   2,070.02/3,104.76 = 915.50/x
3. Step 3: Cross multiply
   2,070.02x = 3,104.76 × 915.50
4. Step 4: Simplify right side
   2,070.02x = 2,842,407.78
5. Step 5: Solve for x
   x = 2,842,407.78/2,070.02
6. Step 6: Final answer
   x = 1,373.13