Finding the Fourth Proportional to 1,499.16, 2,069.72 and 1,003.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.16 : 2,069.72 = 1,003.44 : x
2. Step 2: Convert to fraction form
   1,499.16/2,069.72 = 1,003.44/x
3. Step 3: Cross multiply
   1,499.16x = 2,069.72 × 1,003.44
4. Step 4: Simplify right side
   1,499.16x = 2,076,839.84
5. Step 5: Solve for x
   x = 2,076,839.84/1,499.16
6. Step 6: Final answer
   x = 1,385.34