Finding the Fourth Proportional to 1,802.16, 2,487.02 and 1,056.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,802.16 : 2,487.02 = 1,056.15 : x
2. Step 2: Convert to fraction form
   1,802.16/2,487.02 = 1,056.15/x
3. Step 3: Cross multiply
   1,802.16x = 2,487.02 × 1,056.15
4. Step 4: Simplify right side
   1,802.16x = 2,626,660.89
5. Step 5: Solve for x
   x = 2,626,660.89/1,802.16
6. Step 6: Final answer
   x = 1,457.51