Finding the Fourth Proportional to 1,668.17, 2,303.89 and 1,111.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,668.17 : 2,303.89 = 1,111.00 : x
2. Step 2: Convert to fraction form
   1,668.17/2,303.89 = 1,111.00/x
3. Step 3: Cross multiply
   1,668.17x = 2,303.89 × 1,111.00
4. Step 4: Simplify right side
   1,668.17x = 2,559,617.42
5. Step 5: Solve for x
   x = 2,559,617.42/1,668.17
6. Step 6: Final answer
   x = 1,534.38