Finding the Fourth Proportional to 1,698.90, 2,344.59 and 1,111.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,698.90 : 2,344.59 = 1,111.02 : x
2. Step 2: Convert to fraction form
   1,698.90/2,344.59 = 1,111.02/x
3. Step 3: Cross multiply
   1,698.90x = 2,344.59 × 1,111.02
4. Step 4: Simplify right side
   1,698.90x = 2,604,886.38
5. Step 5: Solve for x
   x = 2,604,886.38/1,698.90
6. Step 6: Final answer
   x = 1,533.28