Finding the Fourth Proportional to 723,200.10, 1,084,980.79 and 510,383.40

Step by Step Solution

1. Step 1: Write the proportion equation
   723,200.10 : 1,084,980.79 = 510,383.40 : x
2. Step 2: Convert to fraction form
   723,200.10/1,084,980.79 = 510,383.40/x
3. Step 3: Cross multiply
   723,200.10x = 1,084,980.79 × 510,383.40
4. Step 4: Simplify right side
   723,200.10x = 553,756,181,104.19
5. Step 5: Solve for x
   x = 553,756,181,104.19/723,200.10
6. Step 6: Final answer
   x = 765,702.58