Finding the Fourth Proportional to 1,003.77, 1,384.43 and 725.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,003.77 : 1,384.43 = 725.00 : x
2. Step 2: Convert to fraction form
   1,003.77/1,384.43 = 725.00/x
3. Step 3: Cross multiply
   1,003.77x = 1,384.43 × 725.00
4. Step 4: Simplify right side
   1,003.77x = 1,003,701.20
5. Step 5: Solve for x
   x = 1,003,701.20/1,003.77
6. Step 6: Final answer
   x = 999.93