Finding the Fourth Proportional to 2,153.04, 2,972.61 and 1,357.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153.04 : 2,972.61 = 1,357.56 : x
2. Step 2: Convert to fraction form
   2,153.04/2,972.61 = 1,357.56/x
3. Step 3: Cross multiply
   2,153.04x = 2,972.61 × 1,357.56
4. Step 4: Simplify right side
   2,153.04x = 4,035,496.43
5. Step 5: Solve for x
   x = 4,035,496.43/2,153.04
6. Step 6: Final answer
   x = 1,874.32