Finding the Fourth Proportional to 1,402.53, 2,102.57 and 1,036.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402.53 : 2,102.57 = 1,036.81 : x
2. Step 2: Convert to fraction form
   1,402.53/2,102.57 = 1,036.81/x
3. Step 3: Cross multiply
   1,402.53x = 2,102.57 × 1,036.81
4. Step 4: Simplify right side
   1,402.53x = 2,179,966.93
5. Step 5: Solve for x
   x = 2,179,966.93/1,402.53
6. Step 6: Final answer
   x = 1,554.31