Finding the Fourth Proportional to 2,153.42, 2,973.13 and 1,357.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153.42 : 2,973.13 = 1,357.94 : x
2. Step 2: Convert to fraction form
   2,153.42/2,973.13 = 1,357.94/x
3. Step 3: Cross multiply
   2,153.42x = 2,973.13 × 1,357.94
4. Step 4: Simplify right side
   2,153.42x = 4,037,313.89
5. Step 5: Solve for x
   x = 4,037,313.89/2,153.42
6. Step 6: Final answer
   x = 1,874.84