Finding the Fourth Proportional to 2,141.42, 2,954.76 and 1,355.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,141.42 : 2,954.76 = 1,355.72 : x
2. Step 2: Convert to fraction form
   2,141.42/2,954.76 = 1,355.72/x
3. Step 3: Cross multiply
   2,141.42x = 2,954.76 × 1,355.72
4. Step 4: Simplify right side
   2,141.42x = 4,005,827.23
5. Step 5: Solve for x
   x = 4,005,827.23/2,141.42
6. Step 6: Final answer
   x = 1,870.64