Finding the Fourth Proportional to 1,345.93, 2,016.72 and 1,129.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345.93 : 2,016.72 = 1,129.93 : x
2. Step 2: Convert to fraction form
   1,345.93/2,016.72 = 1,129.93/x
3. Step 3: Cross multiply
   1,345.93x = 2,016.72 × 1,129.93
4. Step 4: Simplify right side
   1,345.93x = 2,278,752.43
5. Step 5: Solve for x
   x = 2,278,752.43/1,345.93
6. Step 6: Final answer
   x = 1,693.07