Finding the Fourth Proportional to 2,140.42, 2,953.38 and 1,354.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140.42 : 2,953.38 = 1,354.72 : x
2. Step 2: Convert to fraction form
   2,140.42/2,953.38 = 1,354.72/x
3. Step 3: Cross multiply
   2,140.42x = 2,953.38 × 1,354.72
4. Step 4: Simplify right side
   2,140.42x = 4,001,002.95
5. Step 5: Solve for x
   x = 4,001,002.95/2,140.42
6. Step 6: Final answer
   x = 1,869.26