Finding the Fourth Proportional to 858,111.32, 1,184,115.33 and 509,191.58

Step by Step Solution

1. Step 1: Write the proportion equation
   858,111.32 : 1,184,115.33 = 509,191.58 : x
2. Step 2: Convert to fraction form
   858,111.32/1,184,115.33 = 509,191.58/x
3. Step 3: Cross multiply
   858,111.32x = 1,184,115.33 × 509,191.58
4. Step 4: Simplify right side
   858,111.32x = 602,941,555,784.92
5. Step 5: Solve for x
   x = 602,941,555,784.92/858,111.32
6. Step 6: Final answer
   x = 702,637.92