Finding the Fourth Proportional to 1,852.13, 2,776.56 and 698.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,852.13 : 2,776.56 = 698.69 : x
2. Step 2: Convert to fraction form
   1,852.13/2,776.56 = 698.69/x
3. Step 3: Cross multiply
   1,852.13x = 2,776.56 × 698.69
4. Step 4: Simplify right side
   1,852.13x = 1,939,954.71
5. Step 5: Solve for x
   x = 1,939,954.71/1,852.13
6. Step 6: Final answer
   x = 1,047.42