Finding the Fourth Proportional to 1,699.56, 2,343.20 and 1,100.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,699.56 : 2,343.20 = 1,100.99 : x
2. Step 2: Convert to fraction form
   1,699.56/2,343.20 = 1,100.99/x
3. Step 3: Cross multiply
   1,699.56x = 2,343.20 × 1,100.99
4. Step 4: Simplify right side
   1,699.56x = 2,579,839.77
5. Step 5: Solve for x
   x = 2,579,839.77/1,699.56
6. Step 6: Final answer
   x = 1,517.95