Finding the Fourth Proportional to 1,457.32, 2,184.72 and 841.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,457.32 : 2,184.72 = 841.54 : x
2. Step 2: Convert to fraction form
   1,457.32/2,184.72 = 841.54/x
3. Step 3: Cross multiply
   1,457.32x = 2,184.72 × 841.54
4. Step 4: Simplify right side
   1,457.32x = 1,838,529.48
5. Step 5: Solve for x
   x = 1,838,529.48/1,457.32
6. Step 6: Final answer
   x = 1,261.59