Finding the Fourth Proportional to 1,699.50, 2,345.32 and 991.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,699.50 : 2,345.32 = 991.83 : x
2. Step 2: Convert to fraction form
   1,699.50/2,345.32 = 991.83/x
3. Step 3: Cross multiply
   1,699.50x = 2,345.32 × 991.83
4. Step 4: Simplify right side
   1,699.50x = 2,326,156.26
5. Step 5: Solve for x
   x = 2,326,156.26/1,699.50
6. Step 6: Final answer
   x = 1,368.73