Finding the Fourth Proportional to 2,602.35, 3,902.91 and 1,043.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,602.35 : 3,902.91 = 1,043.51 : x
2. Step 2: Convert to fraction form
   2,602.35/3,902.91 = 1,043.51/x
3. Step 3: Cross multiply
   2,602.35x = 3,902.91 × 1,043.51
4. Step 4: Simplify right side
   2,602.35x = 4,072,706.10
5. Step 5: Solve for x
   x = 4,072,706.10/2,602.35
6. Step 6: Final answer
   x = 1,565.01