Finding the Fourth Proportional to 1,215,366.05, 1,677,159.83 and 671,490.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215,366.05 : 1,677,159.83 = 671,490.18 : x
2. Step 2: Convert to fraction form
   1,215,366.05/1,677,159.83 = 671,490.18/x
3. Step 3: Cross multiply
   1,215,366.05x = 1,677,159.83 × 671,490.18
4. Step 4: Simplify right side
   1,215,366.05x = 1,126,196,357,814.20
5. Step 5: Solve for x
   x = 1,126,196,357,814.20/1,215,366.05
6. Step 6: Final answer
   x = 926,631.41