Finding the Fourth Proportional to 2,100.13, 3,148.24 and 929.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.13 : 3,148.24 = 929.51 : x
2. Step 2: Convert to fraction form
   2,100.13/3,148.24 = 929.51/x
3. Step 3: Cross multiply
   2,100.13x = 3,148.24 × 929.51
4. Step 4: Simplify right side
   2,100.13x = 2,926,304.82
5. Step 5: Solve for x
   x = 2,926,304.82/2,100.13
6. Step 6: Final answer
   x = 1,393.40