Finding the Fourth Proportional to 882,111.18, 1,217,126.04 and 519,402.72

Step by Step Solution

1. Step 1: Write the proportion equation
   882,111.18 : 1,217,126.04 = 519,402.72 : x
2. Step 2: Convert to fraction form
   882,111.18/1,217,126.04 = 519,402.72/x
3. Step 3: Cross multiply
   882,111.18x = 1,217,126.04 × 519,402.72
4. Step 4: Simplify right side
   882,111.18x = 632,178,575,758.83
5. Step 5: Solve for x
   x = 632,178,575,758.83/882,111.18
6. Step 6: Final answer
   x = 716,665.42