Finding the Fourth Proportional to 1,564,013.21, 2,156,499.35 and 1,253,667.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,564,013.21 : 2,156,499.35 = 1,253,667.67 : x
2. Step 2: Convert to fraction form
   1,564,013.21/2,156,499.35 = 1,253,667.67/x
3. Step 3: Cross multiply
   1,564,013.21x = 2,156,499.35 × 1,253,667.67
4. Step 4: Simplify right side
   1,564,013.21x = 2,703,533,504,688.52
5. Step 5: Solve for x
   x = 2,703,533,504,688.52/1,564,013.21
6. Step 6: Final answer
   x = 1,728,587.38