Finding the Fourth Proportional to 1,686,780.18, 2,327,527.17 and 1,007,572.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,686,780.18 : 2,327,527.17 = 1,007,572.50 : x
2. Step 2: Convert to fraction form
   1,686,780.18/2,327,527.17 = 1,007,572.50/x
3. Step 3: Cross multiply
   1,686,780.18x = 2,327,527.17 × 1,007,572.50
4. Step 4: Simplify right side
   1,686,780.18x = 2,345,152,369,494.82
5. Step 5: Solve for x
   x = 2,345,152,369,494.82/1,686,780.18
6. Step 6: Final answer
   x = 1,390,312.97