Finding the Fourth Proportional to 1,602.08, 2,210.72 and 939.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,602.08 : 2,210.72 = 939.04 : x
2. Step 2: Convert to fraction form
   1,602.08/2,210.72 = 939.04/x
3. Step 3: Cross multiply
   1,602.08x = 2,210.72 × 939.04
4. Step 4: Simplify right side
   1,602.08x = 2,075,954.51
5. Step 5: Solve for x
   x = 2,075,954.51/1,602.08
6. Step 6: Final answer
   x = 1,295.79