Finding the Fourth Proportional to 1,786.62, 2,679.93 and 554.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,786.62 : 2,679.93 = 554.00 : x
2. Step 2: Convert to fraction form
   1,786.62/2,679.93 = 554.00/x
3. Step 3: Cross multiply
   1,786.62x = 2,679.93 × 554.00
4. Step 4: Simplify right side
   1,786.62x = 1,484,667.82
5. Step 5: Solve for x
   x = 1,484,667.82/1,786.62
6. Step 6: Final answer
   x = 830.99