Finding the Fourth Proportional to 1,109.98, 1,665.99 and 1,043.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109.98 : 1,665.99 = 1,043.00 : x
2. Step 2: Convert to fraction form
   1,109.98/1,665.99 = 1,043.00/x
3. Step 3: Cross multiply
   1,109.98x = 1,665.99 × 1,043.00
4. Step 4: Simplify right side
   1,109.98x = 1,737,633.11
5. Step 5: Solve for x
   x = 1,737,633.11/1,109.98
6. Step 6: Final answer
   x = 1,565.47