Finding the Fourth Proportional to 2,345.02, 3,518.06 and 785.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.02 : 3,518.06 = 785.10 : x
2. Step 2: Convert to fraction form
   2,345.02/3,518.06 = 785.10/x
3. Step 3: Cross multiply
   2,345.02x = 3,518.06 × 785.10
4. Step 4: Simplify right side
   2,345.02x = 2,762,038.17
5. Step 5: Solve for x
   x = 2,762,038.17/2,345.02
6. Step 6: Final answer
   x = 1,177.83