Finding the Fourth Proportional to 1,721.34, 2,375.83 and 1,131.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,721.34 : 2,375.83 = 1,131.93 : x
2. Step 2: Convert to fraction form
   1,721.34/2,375.83 = 1,131.93/x
3. Step 3: Cross multiply
   1,721.34x = 2,375.83 × 1,131.93
4. Step 4: Simplify right side
   1,721.34x = 2,689,267.59
5. Step 5: Solve for x
   x = 2,689,267.59/1,721.34
6. Step 6: Final answer
   x = 1,562.31