Finding the Fourth Proportional to 1,606.10, 2,407.59 and 783.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,606.10 : 2,407.59 = 783.93 : x
2. Step 2: Convert to fraction form
   1,606.10/2,407.59 = 783.93/x
3. Step 3: Cross multiply
   1,606.10x = 2,407.59 × 783.93
4. Step 4: Simplify right side
   1,606.10x = 1,887,382.03
5. Step 5: Solve for x
   x = 1,887,382.03/1,606.10
6. Step 6: Final answer
   x = 1,175.14