Finding the Fourth Proportional to 1,357.29, 2,031.31 and 1,050.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,357.29 : 2,031.31 = 1,050.51 : x
2. Step 2: Convert to fraction form
   1,357.29/2,031.31 = 1,050.51/x
3. Step 3: Cross multiply
   1,357.29x = 2,031.31 × 1,050.51
4. Step 4: Simplify right side
   1,357.29x = 2,133,901.31
5. Step 5: Solve for x
   x = 2,133,901.31/1,357.29
6. Step 6: Final answer
   x = 1,572.18