Finding the Fourth Proportional to 1,602.02, 2,404.02 and 780.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,602.02 : 2,404.02 = 780.32 : x
2. Step 2: Convert to fraction form
   1,602.02/2,404.02 = 780.32/x
3. Step 3: Cross multiply
   1,602.02x = 2,404.02 × 780.32
4. Step 4: Simplify right side
   1,602.02x = 1,875,904.89
5. Step 5: Solve for x
   x = 1,875,904.89/1,602.02
6. Step 6: Final answer
   x = 1,170.96