Finding the Fourth Proportional to 2,131.70, 2,941.74 and 1,248.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.70 : 2,941.74 = 1,248.03 : x
2. Step 2: Convert to fraction form
   2,131.70/2,941.74 = 1,248.03/x
3. Step 3: Cross multiply
   2,131.70x = 2,941.74 × 1,248.03
4. Step 4: Simplify right side
   2,131.70x = 3,671,379.77
5. Step 5: Solve for x
   x = 3,671,379.77/2,131.70
6. Step 6: Final answer
   x = 1,722.28