Finding the Fourth Proportional to 1,803, 2,487.27 and 1,056.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,803 : 2,487.27 = 1,056.50 : x
2. Step 2: Convert to fraction form
   1,803/2,487.27 = 1,056.50/x
3. Step 3: Cross multiply
   1,803x = 2,487.27 × 1,056.50
4. Step 4: Simplify right side
   1,803x = 2,627,788.32
5. Step 5: Solve for x
   x = 2,627,788.32/1,803
6. Step 6: Final answer
   x = 1,457.45