Finding the Fourth Proportional to 1,178,667.62, 1,626,134.65 and 771,002.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,178,667.62 : 1,626,134.65 = 771,002.18 : x
2. Step 2: Convert to fraction form
   1,178,667.62/1,626,134.65 = 771,002.18/x
3. Step 3: Cross multiply
   1,178,667.62x = 1,626,134.65 × 771,002.18
4. Step 4: Simplify right side
   1,178,667.62x = 1,253,753,360,123.54
5. Step 5: Solve for x
   x = 1,253,753,360,123.54/1,178,667.62
6. Step 6: Final answer
   x = 1,063,703.91