Finding the Fourth Proportional to 2,100.02, 3,151.20 and 930.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.02 : 3,151.20 = 930.24 : x
2. Step 2: Convert to fraction form
   2,100.02/3,151.20 = 930.24/x
3. Step 3: Cross multiply
   2,100.02x = 3,151.20 × 930.24
4. Step 4: Simplify right side
   2,100.02x = 2,931,372.29
5. Step 5: Solve for x
   x = 2,931,372.29/2,100.02
6. Step 6: Final answer
   x = 1,395.88